CN111426730A - Method for rapidly determining heavy metal of thin-layer micro-area flow enrichment system - Google Patents
Method for rapidly determining heavy metal of thin-layer micro-area flow enrichment system Download PDFInfo
- Publication number
- CN111426730A CN111426730A CN202010421745.0A CN202010421745A CN111426730A CN 111426730 A CN111426730 A CN 111426730A CN 202010421745 A CN202010421745 A CN 202010421745A CN 111426730 A CN111426730 A CN 111426730A
- Authority
- CN
- China
- Prior art keywords
- electrode
- thin
- module
- heavy metal
- layer
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 229910001385 heavy metal Inorganic materials 0.000 title claims abstract description 45
- 238000000034 method Methods 0.000 title claims abstract description 31
- 238000007789 sealing Methods 0.000 claims abstract description 12
- 229910052797 bismuth Inorganic materials 0.000 claims abstract description 6
- JCXGWMGPZLAOME-UHFFFAOYSA-N bismuth atom Chemical compound [Bi] JCXGWMGPZLAOME-UHFFFAOYSA-N 0.000 claims abstract description 6
- GTKRFUAGOKINCA-UHFFFAOYSA-M chlorosilver;silver Chemical compound [Ag].[Ag]Cl GTKRFUAGOKINCA-UHFFFAOYSA-M 0.000 claims abstract description 6
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 claims abstract description 6
- 229910052737 gold Inorganic materials 0.000 claims abstract description 6
- 239000010931 gold Substances 0.000 claims abstract description 6
- 239000007788 liquid Substances 0.000 claims description 20
- 238000010438 heat treatment Methods 0.000 claims description 12
- 238000005868 electrolysis reaction Methods 0.000 claims description 7
- 150000002500 ions Chemical class 0.000 claims description 5
- 238000000016 photochemical curing Methods 0.000 claims description 3
- 239000011347 resin Substances 0.000 claims description 3
- 229920005989 resin Polymers 0.000 claims description 3
- 239000012780 transparent material Substances 0.000 claims description 3
- 239000002699 waste material Substances 0.000 claims description 3
- 238000010146 3D printing Methods 0.000 claims description 2
- 238000004090 dissolution Methods 0.000 claims description 2
- 210000001503 joint Anatomy 0.000 claims 1
- QSHDDOUJBYECFT-UHFFFAOYSA-N mercury Chemical compound [Hg] QSHDDOUJBYECFT-UHFFFAOYSA-N 0.000 abstract description 4
- 229910052753 mercury Inorganic materials 0.000 abstract description 4
- 239000000758 substrate Substances 0.000 description 10
- 229910052751 metal Inorganic materials 0.000 description 4
- 239000002184 metal Substances 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 2
- 229910001423 beryllium ion Inorganic materials 0.000 description 2
- 230000002457 bidirectional effect Effects 0.000 description 2
- 238000004904 shortening Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000007639 printing Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
Images
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
- G01N27/26—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating electrochemical variables; by using electrolysis or electrophoresis
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
- G01N27/26—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating electrochemical variables; by using electrolysis or electrophoresis
- G01N27/28—Electrolytic cell components
- G01N27/30—Electrodes, e.g. test electrodes; Half-cells
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
- G01N27/26—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating electrochemical variables; by using electrolysis or electrophoresis
- G01N27/416—Systems
- G01N27/48—Systems using polarography, i.e. measuring changes in current under a slowly-varying voltage
Landscapes
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Health & Medical Sciences (AREA)
- Physics & Mathematics (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- Molecular Biology (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Water Treatment By Electricity Or Magnetism (AREA)
Abstract
The invention discloses a method for rapidly determining heavy metal in a thin-layer micro-area flow enrichment system, wherein the thin-layer micro-area flow enrichment system comprises a plane card electrode, a thin-layer circulation device and a control platform; the planar card electrode is internally provided with three electrodes which are respectively a reference electrode, a working electrode and an auxiliary electrode, and the right end of the planar card electrode is provided with a sealing plate for sealing the card slot; the control platform comprises a contact joint butted with the measuring contact plate, a power-on control module, a central control module, a data drawing module, a data recording module, a data calculating module and a display module; the reference electrode is a silver-silver chloride electrode, the working electrode is a bismuth electrode, and the auxiliary electrode is a gold electrode, so that the pollution of the mercury electrode to the environment is avoided; in the testing process, the solution to be tested is pre-electrolyzed and dissolved out, so that the enrichment time is shortened, and the enrichment efficiency is improved.
Description
Technical Field
The invention belongs to the technical field of heavy metal determination, and particularly relates to a method for rapidly determining heavy metal in a thin-layer micro-area flow enrichment system.
Background
The existing method for determining heavy metal in solution generally adopts electrodes containing mercury to carry out electrolysis, which is not beneficial to environmental protection, and cannot rapidly separate out heavy metal from the solution to be determined, and cannot rapidly dissolve out the heavy metal after separation, thereby reducing the efficiency of determining the heavy metal and failing to meet the requirements. Therefore, we propose a method for rapidly determining heavy metals in a thin-layer micro-zone flow enrichment system to solve the above-mentioned problems in the background art.
Disclosure of Invention
The invention aims to provide a method for rapidly determining heavy metal in a thin-layer micro-area flow enrichment system, so as to solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme: a method for rapidly determining heavy metal of a thin-layer micro-area flow enrichment system comprises a plane card electrode, a thin-layer flow device and a control platform, wherein the thin-layer flow device comprises a base body, a thin-layer pool in the base body and a card groove for inserting the plane card electrode, the thin-layer pool is arranged in a saddle shape, and the upper ends of two sides of the thin-layer pool are respectively provided with a liquid inlet pipeline and a liquid outlet pipeline;
the planar card electrode is internally provided with three electrodes which are respectively a reference electrode, a working electrode and an auxiliary electrode, the right end of the planar card electrode is provided with a sealing plate for sealing a card slot, the middle part of the right end of the sealing plate is provided with a measuring contact plate, and leads of the three electrodes are all arranged on the measuring contact plate;
the control platform comprises a contact joint butted with the measuring contact plate, a power-on control module, a central control module, a data drawing module, a data recording module, a data calculating module and a display module;
the method for rapidly determining the heavy metal specifically comprises the following steps:
s1: the solution to be measured enters the thin layer pool through the liquid inlet pipeline, the planar card electrode is inserted into the card groove, so that the three electrodes are positioned in the thin layer pool, the solution to be measured submerges the three electrodes, waste liquid is discharged from the liquid outlet pipeline through the liquid outlet pipeline, and the contact joint is butted with the measuring contact plate;
s2: applying negative voltage between the reference electrode and the working electrode through the heating control module, starting pre-electrolysis to enrich heavy metal ions to be detected on the surface of the working electrode, and scanning the potential applied to the working electrode from negative direction to positive direction through the heating control module after the pre-electrolysis is finished to dissolve out the heavy metal to be detected enriched on the working electrode;
s3: the current in a loop formed by the working electrode and the auxiliary electrode in the dissolving-out process is recorded through the data recording module, the potential of the working electrode is recorded at the same time, a volt-ampere curve is obtained through the data drawing module, the peak current is obtained through the volt-ampere curve through the data calculating module, the concentration of the heavy metal in the solution to be detected is obtained through calculation, and the concentration of the heavy metal in the solution to be detected is displayed through the display module.
Preferably, all structural components of the thin-layer flow device do not need any assembly process, and are integrally formed by photosensitive resin and formed by three-dimensional photocuring in the D printing process.
Preferably, the reference electrode is a silver-silver chloride electrode, the working electrode is a bismuth electrode, and the auxiliary electrode is a gold electrode.
Preferably, the substrate is a cuboid made of transparent materials, the thin layer pool is formed by a thin layer saddle-shaped cavity in the substrate, the card slot is a sheet-shaped groove parallel to the bottom surface of the substrate, and the groove is communicated with the thin layer pool from the outer wall of the substrate.
Preferably, the power-on control module is respectively connected with the contact joint and the central control module in a bidirectional mode, the central control module is also respectively connected with the data drawing module, the data recording module and the data calculating module in a bidirectional mode, and the display module is connected with the central control module in a unidirectional mode.
Preferably, the central control module is used for controlling the work of the data drawing module, the heating control module, the data recording module, the data calculating module and the display module.
Compared with the prior art, the invention has the beneficial effects that: the invention provides a method for rapidly determining heavy metal in a thin-layer micro-area flow enrichment system, wherein three electrodes are respectively a reference electrode, a working electrode and an auxiliary electrode, the reference electrode is a silver-silver chloride electrode, the working electrode is a bismuth electrode, and the auxiliary electrode is a gold electrode, so that the pollution of the mercury electrode to the environment is avoided;
in the testing process, the solution to be tested is pre-electrolyzed, so that heavy metal ions in the solution are reduced and separated out to be metal which is enriched on the surface of the working electrode, and then the metal is dissolved out, so that the heavy metal to be tested which is deposited on the surface of the working electrode is oxidized to be ions which are dissolved out, thereby shortening the enrichment time and improving the enrichment efficiency;
through the setting of control platform, obtain the volt-ampere curve through the data drawing module, the data calculation module obtains peak current through this volt-ampere curve to calculate and obtain the heavy metal concentration in the solution that awaits measuring, show the heavy metal concentration in this solution that awaits measuring through the display module simultaneously, make the survey of heavy metal more quick like this, more directly perceived, more intelligent.
Drawings
FIG. 1 is an exploded view of a planar card electrode and thin layer flow device according to the present invention;
FIG. 2 is a schematic view of a planar card electrode structure according to the present invention;
FIG. 3 is a schematic view of the mounting structure of the planar card electrode and thin-layer flow device of the present invention;
FIG. 4 is a schematic diagram of a control platform according to the present invention.
In the figure: the device comprises a base body 1, a thin-layer pool 2, a liquid inlet pipeline 3, a liquid outlet pipeline 4, a card slot 5, a plane card electrode 6, a sealing plate 7, a measuring contact plate 8, a reference electrode 9, a working electrode 10, an auxiliary electrode 11, a lead wire 12, a contact joint 13, a heating control module 14, a central control module 15, a data recording module 16, a data drawing module 17, a data calculation module 18 and a display module 19.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example 1
The invention provides a method for rapidly determining heavy metal in a thin-layer micro-area flow enrichment system as shown in figures 1-4, wherein the thin-layer micro-area flow enrichment system comprises a plane card electrode 6, a thin-layer flow device and a control platform, the thin-layer flow device comprises a substrate 1, a thin-layer pool 2 in the substrate 1 and a card slot 5 for inserting the plane card electrode 6, the thin-layer pool 2 is arranged in a saddle shape, and the upper ends of two sides of the thin-layer pool are respectively provided with a liquid inlet pipeline 3 and a liquid outlet pipeline 4;
the planar card electrode 6 is internally provided with three electrodes which are respectively a reference electrode 9, a working electrode 10 and an auxiliary electrode 11, the right end of the planar card electrode 6 is provided with a sealing plate 7 for sealing the card slot 5, the middle part of the right end of the sealing plate 7 is provided with a measuring contact plate 8, and lead wires 12 of the three electrodes are all arranged on the measuring contact plate 8;
the control platform comprises a contact joint 13 butted with the measuring contact plate 8, a heating control module 14, a central control module 15, a data drawing module 17, a data recording module 16, a data calculating module 18 and a display module 19;
the method for rapidly determining the heavy metal specifically comprises the following steps:
s1: a solution to be measured enters the thin layer pool 2 through the liquid inlet pipeline 3, the planar card electrode 6 is inserted into the card groove 5, so that the three electrodes are positioned in the thin layer pool 2, the solution to be measured submerges the three electrodes, waste liquid is discharged from the liquid outlet pipeline 4 through the liquid outlet pipeline, and the contact joint 13 is butted with the measuring contact plate 8;
s2: applying negative voltage between the reference electrode 9 and the working electrode 10 through the heating control module 14, starting pre-electrolysis to enrich heavy metal ions to be detected on the surface of the working electrode 10, and scanning the potential applied to the working electrode 10 from negative direction to positive direction through the heating control module 14 after the pre-electrolysis is finished, so that the heavy metal to be detected enriched on the working electrode 10 is dissolved out;
s3: the current in a loop formed by the working electrode 10 and the auxiliary electrode 11 in the dissolution process is recorded through the data recording module 16, the potential of the working electrode 10 is recorded at the same time, a volt-ampere curve is obtained through the data drawing module 17, the peak current is obtained through the volt-ampere curve by the data calculating module 18, the concentration of the heavy metal in the solution to be measured is obtained through calculation, and the concentration of the heavy metal in the solution to be measured is displayed through the display module 19.
Specifically, all structural components of the thin-layer circulation device do not need any assembly process, and are integrally formed by photosensitive resin and formed by three-dimensional photocuring in the 3D printing process.
Specifically, the reference electrode 9 is a silver-silver chloride electrode, the working electrode 10 is a bismuth electrode, and the auxiliary electrode 11 is a gold electrode.
Specifically, the substrate 1 is a cuboid made of transparent materials, the thin layer pool 2 is formed by a thin layer saddle-shaped cavity in the substrate 1, the card slot 5 is a sheet-shaped groove parallel to the bottom surface of the substrate 1, and the groove is communicated with the thin layer pool 2 from the outer wall of the substrate 1.
Specifically, the heating control module 14 is respectively connected to the contact terminal 13 and the central control module 15 in two directions, the central control module 15 is also respectively connected to the data drawing module 17, the data recording module 16 and the data calculating module 18 in two directions, and the display module 19 is connected to the central control module 15 in one direction.
Specifically, the central control module 15 is used for controlling the operations of the data charting module 17, the heating control module 14, the data recording module 16, the data calculating module 18 and the display module 19.
In summary, compared with the prior art, the three electrodes of the invention are respectively the reference electrode 9, the working electrode 10 and the auxiliary electrode 11, and the reference electrode 9 is a silver-silver chloride electrode, the working electrode 10 is a bismuth electrode, and the auxiliary electrode 11 is a gold electrode, so that the pollution of the mercury electrode to the environment is avoided;
in the testing process, the solution to be tested is pre-electrolyzed, so that heavy metal ions in the solution are reduced and separated out to be metal which is enriched on the surface of the working electrode, and then the metal is dissolved out, so that the heavy metal to be tested which is deposited on the surface of the working electrode is oxidized to be ions which are dissolved out, thereby shortening the enrichment time and improving the enrichment efficiency;
through the setting of control platform, obtain the volt-ampere curve through data drawing module 17, data calculation module 18 obtains peak current through this volt-ampere curve to calculate and obtain the heavy metal concentration in the solution that awaits measuring, show the heavy metal concentration in this solution that awaits measuring through display module 19 simultaneously, make the survey of heavy metal more quick like this, more directly perceived, more intelligent.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the invention.
Claims (6)
1. A method for rapidly determining heavy metal of a thin-layer micro-area flow enrichment system is characterized by comprising the following steps:
the thin-layer micro-area flow enrichment system comprises a plane card electrode (6), a thin-layer flow device and a control platform, wherein the thin-layer flow device comprises a base body (1), a thin-layer pool (2) inside the base body (1) and a card groove (5) for inserting the plane card electrode (6), the thin-layer pool (2) is arranged in a saddle shape, and the upper ends of two sides of the thin-layer pool are respectively provided with a liquid inlet pipeline (3) and a liquid outlet pipeline (4);
the planar card electrode (6) is internally provided with three electrodes which are respectively a reference electrode (9), a working electrode (10) and an auxiliary electrode (11), the right end of the planar card electrode (6) is provided with a sealing plate (7) for sealing the card slot (5), the middle part of the right end of the sealing plate (7) is provided with a measuring contact plate (8), and leads (12) of the three electrodes are all arranged on the measuring contact plate (8);
the control platform comprises a contact joint (13) which is in butt joint with the measuring contact plate (8), a power-on control module (14), a central control module (15), a data drawing module (17), a data recording module (16), a data calculating module (18) and a display module (19);
the method for rapidly determining the heavy metal specifically comprises the following steps:
s1: the solution to be measured enters the thin layer pool (2) through the liquid inlet pipeline (3), the planar card electrode (6) is inserted into the card groove (5), so that the three electrodes are positioned in the thin layer pool (2), the solution to be measured submerges the three electrodes, waste liquid is discharged from the liquid outlet pipeline (4) through the liquid outlet pipeline, and the contact joint (13) is butted with the measuring contact plate (8);
s2: applying negative voltage between the reference electrode (9) and the working electrode (10) through the heating control module (14), starting pre-electrolysis to enrich heavy metal ions to be detected on the surface of the working electrode (10), and after the pre-electrolysis is finished, scanning the potential applied to the working electrode (10) from negative direction to positive direction through the heating control module (14) to dissolve out the heavy metal to be detected enriched on the working electrode (10);
s3: the current in a loop formed by the working electrode (10) and the auxiliary electrode (11) in the dissolution process is recorded through the data recording module (16), the potential of the working electrode (10) is recorded at the same time, a volt-ampere curve is obtained through the data drawing module (17), the peak current is obtained through the volt-ampere curve through the data calculating module (18), the concentration of the heavy metal in the solution to be detected is obtained through calculation, and the concentration of the heavy metal in the solution to be detected is displayed through the display module (19).
2. The method for rapidly measuring the heavy metal in the thin-layer micro-area flow enrichment system according to claim 1, which is characterized in that: all structural components of the thin-layer circulation device do not need any assembly process, and are integrally formed by photosensitive resin and formed by three-dimensional photocuring in the 3D printing process.
3. The method for rapidly measuring the heavy metal in the thin-layer micro-area flow enrichment system according to claim 1, which is characterized in that: the reference electrode (9) is a silver-silver chloride electrode, the working electrode (10) is a bismuth electrode, and the auxiliary electrode (11) is a gold electrode.
4. The method for rapidly measuring the heavy metal in the thin-layer micro-area flow enrichment system according to claim 1, which is characterized in that: the card slot is characterized in that the base body (1) is a cuboid made of transparent materials, the thin layer pool (2) is formed by a thin layer saddle-shaped cavity in the base body (1), the card slot (5) is a sheet-shaped groove parallel to the bottom surface of the base body (1), and the groove is communicated with the thin layer pool (2) from the outer wall of the base body (1).
5. The method for rapidly measuring the heavy metal in the thin-layer micro-area flow enrichment system according to claim 1, which is characterized in that: the heating control module (14) is respectively connected with the contact joint (13) and the central control module (15) in two directions, the central control module (15) is also respectively connected with the data drawing module (17), the data recording module (16) and the data calculating module (18) in two directions, and the display module (19) is connected with the central control module (15) in one direction.
6. The method for rapidly measuring the heavy metal in the thin-layer micro-area flow enrichment system according to claim 1, which is characterized in that: the central control module (15) is used for controlling the work of the data drawing module (17), the power-on control module (14), the data recording module (16), the data calculating module (18) and the display module (19).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010421745.0A CN111426730A (en) | 2020-05-18 | 2020-05-18 | Method for rapidly determining heavy metal of thin-layer micro-area flow enrichment system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010421745.0A CN111426730A (en) | 2020-05-18 | 2020-05-18 | Method for rapidly determining heavy metal of thin-layer micro-area flow enrichment system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111426730A true CN111426730A (en) | 2020-07-17 |
Family
ID=71551015
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010421745.0A Pending CN111426730A (en) | 2020-05-18 | 2020-05-18 | Method for rapidly determining heavy metal of thin-layer micro-area flow enrichment system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111426730A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2024005719A1 (en) * | 2022-06-30 | 2024-01-04 | Agency For Science, Technology And Research | Analyser and computer-implemented method for pollutant detection |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20090050465A (en) * | 2007-11-15 | 2009-05-20 | 한국바이오시스템(주) | On-line heavy metal analysis device using electrochemical analysis |
| WO2009123645A1 (en) * | 2008-04-04 | 2009-10-08 | Arizona Board Of Regents, Acting For And On Behalf Of Arizona State University | Simultaneous electrochemical detection of multiple heavy metal ions in liquid |
| CN105223259A (en) * | 2015-09-29 | 2016-01-06 | 南京工业大学 | Portable heavy metal ion rapid detection device and application method |
| CN107367542A (en) * | 2017-08-21 | 2017-11-21 | 中华人民共和国南京出入境检验检疫局 | Portable flow field type electrode heavy metal ion detection device and electrode card |
| CN107505381A (en) * | 2017-08-21 | 2017-12-22 | 中华人民共和国南京出入境检验检疫局 | Portable USB interface heavy metal ion detection device and electrode card |
| CN110756234A (en) * | 2019-11-04 | 2020-02-07 | 江苏扬子检验认证有限公司 | Electrode-modified heavy metal ion microfluidic detection chip and preparation method |
-
2020
- 2020-05-18 CN CN202010421745.0A patent/CN111426730A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20090050465A (en) * | 2007-11-15 | 2009-05-20 | 한국바이오시스템(주) | On-line heavy metal analysis device using electrochemical analysis |
| CN101910831A (en) * | 2007-11-15 | 2010-12-08 | 韩国生物系统株式会社 | On-line heavy metal analysis device using electrochemical analysis method |
| WO2009123645A1 (en) * | 2008-04-04 | 2009-10-08 | Arizona Board Of Regents, Acting For And On Behalf Of Arizona State University | Simultaneous electrochemical detection of multiple heavy metal ions in liquid |
| CN105223259A (en) * | 2015-09-29 | 2016-01-06 | 南京工业大学 | Portable heavy metal ion rapid detection device and application method |
| CN107367542A (en) * | 2017-08-21 | 2017-11-21 | 中华人民共和国南京出入境检验检疫局 | Portable flow field type electrode heavy metal ion detection device and electrode card |
| CN107505381A (en) * | 2017-08-21 | 2017-12-22 | 中华人民共和国南京出入境检验检疫局 | Portable USB interface heavy metal ion detection device and electrode card |
| CN110756234A (en) * | 2019-11-04 | 2020-02-07 | 江苏扬子检验认证有限公司 | Electrode-modified heavy metal ion microfluidic detection chip and preparation method |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2024005719A1 (en) * | 2022-06-30 | 2024-01-04 | Agency For Science, Technology And Research | Analyser and computer-implemented method for pollutant detection |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105223259B (en) | Portable heavy metal ion rapid detection device and application method | |
| van der Schoot et al. | An ISFET-based microlitre titrator: Integration of a chemical sensor—Actuator system | |
| CN101995430B (en) | Detecting device and detection method of ion transmembrane migration number tracking | |
| Brown et al. | The kinetics of calcite dissolution/precipitation | |
| WO2021088304A1 (en) | Electrode-modified heavy metal ion microfluidic detection chip and preparation method | |
| CN212364175U (en) | A rapid detection platform for heavy metal ions | |
| CN107271525A (en) | A kind of integrated form ampere detection sensor for micro-total analysis system chip | |
| CN107505377A (en) | Electrochemical sensor with replaceable electrode assemblie | |
| CN107367542A (en) | Portable flow field type electrode heavy metal ion detection device and electrode card | |
| CN207067056U (en) | Portable flow field type electrode heavy metal ion detection device and electrode card | |
| CN111426730A (en) | Method for rapidly determining heavy metal of thin-layer micro-area flow enrichment system | |
| CN104132976A (en) | Method for in-situ construction of electrode through electro-depositing super-stable metal thin films on ITO conductive glass surface | |
| CN107505381A (en) | Portable USB interface heavy metal ion detection device and electrode card | |
| JPH03191854A (en) | Apparatus and method for restricting ef- fect of insoluble oxygen content of eletrolytic solution to minimum in low range oxygen analyzer | |
| Blaedel et al. | Turbulent tubular electrode | |
| CN207067057U (en) | Portable USB interface heavy metal ion detection device and electrode card | |
| CN110596223B (en) | A microfluidic enrichment device and method based on electroosmotic induced pressure flow | |
| CN212008402U (en) | A microfluidic detection chip for heavy metal ions with flow field electrodes | |
| JP3708208B2 (en) | pH sensor and ion water generator | |
| JP3633077B2 (en) | pH sensor and ion water generator | |
| CN2572405Y (en) | Capillary electrophoresis multi-channel electrochemistry detector | |
| RU2150107C1 (en) | Method for solid-phase separation and detection of ions and electrochemical cell which implements said method | |
| CN102121918A (en) | Electromigration acid-base titration device for measuring acid and alkali concentration | |
| JPS5937464B2 (en) | Coulometric titration method | |
| SU1265574A1 (en) | Ion-selective differential transducer |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20200717 |
|
| RJ01 | Rejection of invention patent application after publication |