CN109030468A - A kind of electricity enhancing liquid phase chemiluminescence detecting and detection method - Google Patents
A kind of electricity enhancing liquid phase chemiluminescence detecting and detection method Download PDFInfo
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Abstract
本发明公开了电增强气液相化学发光检测装置及检测方法，所述检测装置的反应器包括反应器主体、电增强模块和反应床，反应器主体设置有进液端、出液端、进气端和出气端，反应器主体上开设有能够形成反应腔的第一凹槽且第一凹槽与进液端、出液端、进气端和出气端连通，第一凹槽的底表面上开设有第二凹槽，电增强模块设置在第二凹槽中，反应床设置在电增强模块的上表面上并与之贴合。所述检测方法则采用了上述检测装置进行气体的检测。本发明结构简单、易于实现且成本低，可有效地增强检测体系的化学发光信号，提高检测方法的灵敏度。
The invention discloses an electrically enhanced gas-liquid phase chemiluminescence detection device and a detection method. The reactor of the detection device includes a reactor main body, an electric enhancement module and a reaction bed. The main body of the reactor is provided with a liquid inlet end, a liquid outlet end, an inlet The gas end and the gas outlet end, the reactor main body is provided with the first groove capable of forming the reaction chamber and the first groove communicates with the liquid inlet end, the liquid outlet end, the air inlet end and the gas outlet end, the bottom surface of the first groove A second groove is opened on the top, and the electric enhancement module is arranged in the second groove, and the reaction bed is arranged on the upper surface of the electric enhancement module and bonded to it. The detection method uses the above-mentioned detection device for gas detection. The invention has simple structure, easy realization and low cost, can effectively enhance the chemiluminescent signal of the detection system, and improve the sensitivity of the detection method.
Description
Technical field
The present invention relates to the technical fields of gas detection, more particularly, are related to a kind of electricity enhancing liquid phase chemiluminescence
Detection device and detection method.
Background technique
Chemoluminescence method is a kind of very widely used high-sensitivity detecting method.Liquid phase chemoluminescence method is to utilize
The chemiluminescence reaction occurred between gas phase and liquid phase detects test substance, and this method may be directly applied to trace gas
Detection, it is wider in the detection field application of atmosphere pollution, such as the dirts such as Ozone in Atmosphere, nitrogen dioxide, PAN, sulfur dioxide
Contaminate the detection of gas.By improving and optimizating for some detection devices or detection technique, detection sensitivity can be significantly promoted, is risen
To the effect of enhanced sensitivity.
Existing photosensitivity-enhancing method is concentrated mainly on two ways: first is that in the optimization of detection reagent ingredient, in detection reagent
Some additional reaction reagents, that is, sensitizer are added, for the enhanced sensitivity of reaction system, improve the sensitivity of detection method；
Second is that by the structure for changing reactor, for example increase the surface area of reaction bed, so that reaction interface area is improved, enhancing chemistry
Luminescence-producing reaction achievees the purpose that enhanced sensitivity.
On the whole, enhanced sensitivity technology is very limited, and cannot be general, and in some special detection architectures, this two
Kind mode role is very limited.
Summary of the invention
In order to overcome problems of the prior art, the present invention is intended to provide a kind of realized pair in the way of electricity enhancing
The electricity enhancing liquid phase chemiluminescence detecting and detection method of liquid phase chemical luminescence detection method enhanced sensitivity.
An aspect of of the present present invention provides electricity enhancing liquid phase chemiluminescence detecting, the reactor of the detection device
Including reactor body, electricity enhancing module and reaction bed, the reactor body be provided with liquid feeding end, outlet end, inlet end and
Outlet side, the first groove for being capable of forming reaction chamber is offered on reactor body and the first groove and liquid feeding end, outlet end, into
Gas end is connected to outlet side, and the second groove is offered on the bottom surface of the first groove, and electricity enhancing module is arranged in the second groove,
Reaction bed is arranged on the upper surface of electricity enhancing module and is bonded therewith.
One embodiment of electricity enhancing liquid phase chemiluminescence detecting according to the present invention, described device further includes opacus
Shell, optical window and photoelectric sensing unit, optical window are arranged between reactor and opacus shell, and reactor passes through reactor body
First groove and opacus shell form closed reaction chamber and the reaction chamber is located at the side of optical window, photoelectric sensing unit peace
The other side in opacus shell and positioned at optical window.
One embodiment of electricity enhancing liquid phase chemiluminescence detecting according to the present invention, first groove are diamond shape
Slot, second groove are the bar shaped reactive tank being arranged in the middle part of the bottom surface of diamond shape slot, the electricity enhancing module and reaction bed
It is arranged in the bar shaped reactive tank and the upper surface of the reaction bed is slightly below the upper surface of the diamond shape slot.
According to the present invention electricity enhancing liquid phase chemiluminescence detecting one embodiment, the liquid feeding end, outlet end,
Inlet end and outlet side are located at four apexes of the diamond shape slot, wherein liquid feeding end is located at the upper end of diamond shape slot and position
In the upper end of bar shaped reactive tank, outlet end is located at the lower end of diamond shape slot and is located at the lower end of bar shaped reactive tank, inlet end and outlet
End is located at the left and right ends of diamond shape slot.
One embodiment of electricity enhancing liquid phase chemiluminescence detecting according to the present invention, the electricity enhancing module include
Circuit substrate and the printed circuit for being located at circuit substrate upper surface, the printed circuit is the layers of copper and table for being etched into specific shape
Face has carried out turmeric processing, and the gap between the circuit substrate and the second groove is handled using waterproof sealing.
One embodiment of electricity enhancing liquid phase chemiluminescence detecting according to the present invention, the printed circuit are staggeredly
The lattice structure of distribution, printed circuit are distinguished by the electrode connecting hole of reactor the top and the positive and negative anodes of external power supply power supply
It is connected.
One embodiment of electricity enhancing liquid phase chemiluminescence detecting according to the present invention, the liquid feeding end includes feed liquor
Connector and the feed liquor cushion chamber that liquid inlet joint end is arranged in are filled with the ultra-fine fibre of the first strongly hydrophilic in the feed liquor cushion chamber
It ties up obturator and the first strongly hydrophilic superfine fibre obturator is close to the reaction bed setting.
Another aspect provides electricity to enhance liquid phase chemical luminescence detection method, enhances gas-liquid using above-mentioned electricity
Phase chemiluminescence detecting carries out gas detection.
According to the present invention electricity enhancing liquid phase chemical luminescence detection method one embodiment, the detection method include with
Lower step:
A, the electricity enhancing module that will test device connect with external power supply and opens power supply, and the inlet end that will test device connects
It connects pneumatic filter and outlet side is connected into vacuum pump, enter filtered gas to be detected in reactor；
B, the liquid feeding end and outlet end that will test device are all connected with peristaltic pump, enter detection reagent in reactor and spread
Uniform liquid film is formed to reaction bed；
C, into the detection reagent heterogeneous phase chemistry hair on the object gas and reaction bed in the gas to be detected of reactor
Light reaction, the chemiluminescence signal through electricity enhancing module enhancing that will test is converted to electric signal V, while utilizing reaction temperature
T is converted to the target gas levels in gas to be detected.
One embodiment of electricity enhancing liquid phase chemical luminescence detection method according to the present invention, controls the detection device
Liquid speed degree is 1.5~2 times of feed speed out, and the external power supply of the electricity boost module is DC voltage or alternating voltage.
Compared with prior art, the configuration of the present invention is simple, be easily achieved and at low cost, can effectively enhance detection architecture
Chemiluminescence signal improves the sensitivity of detection method.The present invention be different from it is traditional can only be from agent prescription, detector structure
The factors sensitized chemiluminescence such as size detects the mode of signal, provides new approaches to the enhanced sensitivity mode of detection method, facilitates
The sensitivity of detection technique is improved, the development of liquid phase chemiluminescence detection technology is pushed.
Detailed description of the invention
Fig. 1 shows the section view knot of electricity enhancing liquid phase chemiluminescence detecting according to an exemplary embodiment of the present invention
Structure schematic diagram.
Fig. 2 shows the overlooking structure diagrams of reactor body in Fig. 1.
Description of symbols:
The opacus shell of 1- reactor, 2-, 3- optical window, 4- photoelectric sensing unit, 5- reaction chamber, 6-O type circle, 11- reactor
Main body, 12- liquid feeding end, 13- outlet end, 14- inlet end, the outlet side 15-, the second groove of 16-, 17- electricity enhancing module, 171- electricity
Base board, 172- printed circuit, 18- reaction bed, 19- electrode connecting hole, the first groove of 20-.
Specific embodiment
All features disclosed in this specification or disclosed all methods or in the process the step of, in addition to mutually exclusive
Feature and/or step other than, can combine in any way.
Any feature disclosed in this specification unless specifically stated can be equivalent or with similar purpose by other
Alternative features are replaced.That is, unless specifically stated, each feature is an example in a series of equivalent or similar characteristics
?.
The structure of liquid phase chemiluminescence detecting first will be enhanced to electricity of the invention below and principle carries out specifically
It is bright.
Fig. 1 shows the section view knot of electricity enhancing liquid phase chemiluminescence detecting according to an exemplary embodiment of the present invention
Structure schematic diagram, Fig. 2 shows the overlooking structure diagrams of reactor body in Fig. 1.
As depicted in figs. 1 and 2, an exemplary embodiment of the present invention, the electricity enhancing liquid phase chemiluminescence detection
Device includes reactor 1, opacus shell 2, optical window 3 and photoelectric sensing unit 4, and optical window 3 is arranged in reactor 1 and opacus shell 2
Between, closed reaction chamber 5 is formed between reactor 1 and opacus shell 2 and reaction chamber 5 is located at the side of optical window 3, photoelectric transfer
Sense unit 4 is mounted in opacus shell 2 and is located at the other side of optical window 3.Wherein, light is set between reactor 1 and opacus shell 2
O-ring is provided at the position of window 3 to guarantee the leakproofness of device.
The chemiluminescence reaction occurred between gas phase and liquid phase occurs in the reaction chamber 5 of reactor 1, and opacus shell 2 hinders
Only light enters reaction chamber 5, and optical window 3 appears the light that reaction generates, and photoelectric sensing unit 4 then detects the optical signal appeared and biography
It is defeated by computer and realizes that subsequent conversion calculates, to obtain the target gas levels in gas to be detected.
The present invention is directed to effectively enhance the chemiluminescence signal of detection architecture by the way of electricity enhancing, detection side is improved
The sensitivity of method, and in particular to the structure and function of reactor 1 is improved.
An exemplary embodiment of the present invention, reactor 1 include reactor body 11, electricity enhancing module 17 and reaction bed
18, reactor body 11 is provided with liquid feeding end 12, outlet end 13, inlet end 14 and outlet side 15, opens up on reactor body 11
There is the first groove 20 for being capable of forming reaction chamber and the first groove 20 and liquid feeding end 12, outlet end 13, inlet end 14 and outlet side
15 are connected to, and the second groove 16 is offered on the bottom surface of the first groove 20, and electricity enhancing module 17 is arranged in the second groove 16, instead
It answers bed 18 to be arranged on the upper surface of electricity enhancing module 17 and is bonded therewith.
Specifically, the first groove 20 is preferably diamond shape slot, and the second groove 16 is preferably arranged in the bottom surface of diamond shape slot
The bar shaped reactive tank in the portion and bar shaped reactive tank is preferably vertically arranged, electricity enhancing module 17 and reaction bed 18 are arranged at item
In the shaped reaction slot and upper surface of reaction bed 18 is slightly below the upper surface of diamond shape slot.Wherein, reaction bed 18 can be by strong hydrophilicity
Property thin-film material be made, such as can be for pure cotton cloth, silk, polyester fiber cloth, non-woven fabrics etc..
Liquid feeding end 12, outlet end 13, inlet end 14 and outlet side 15 are located at four apexes of diamond shape slot, wherein
Liquid feeding end 12 is located at the upper end of diamond shape slot and is located at the upper end of bar shaped reactive tank, and outlet end 13 is located at the lower end of diamond shape slot and is located at
The lower end of bar shaped reactive tank, inlet end 14 and outlet side 15 are located at the left and right ends of diamond shape slot, then gas flow and liquid
Flow direction is to may advantageously facilitate the progress of chemiluminescence reaction in substantially vertical relationship.
Wherein, liquid feeding end 12 preferably includes liquid inlet joint and the feed liquor cushion chamber that liquid inlet joint end is arranged in, should be into
The first strongly hydrophilic superfine fibre obturator is filled in liquid cushion chamber and the first strongly hydrophilic superfine fibre obturator is tight
It pastes reaction bed 18 to be arranged, flow velocity when being thus conducive to will test reagent rapidly and evenly directed response bed 18, while avoiding feed liquor
The adverse effect of too fast generation.
Electricity enhancing module 17 is arranged in the bottom of reaction bed 18, it is possible thereby to effectively occur by electric humidification enhancing
Chemiluminescence reaction on reaction bed gas liquid film further enhances the chemiluminescence signal of chemiluminescence and generation.Instead
Answer bed 18 be laid in vertically arranged bar shaped reactive tank be then conducive to detection reagent under the effect of gravity seepage flow and diffusion and
18 surface of reaction bed forms uniform liquid film, promotes the uniformity of reaction and guarantees detection efficiency；It is laid on slightly below diamond shape slot
Position then can be to avoid the spilling of detection reagent.
The electricity enhancing module 17 that the present invention uses includes circuit substrate 171 and the printing for being located at 171 upper surface of circuit substrate
Circuit 172, printed circuit 172 is the layers of copper for being etched into specific shape and surface has carried out turmeric processing.Specifically, printed circuit
172 can be the lattice structure (as shown in Figure 2) being interspersed, and printed circuit 172 is connected by the electrode of reactor the top
Hole 19 and the positive and negative anodes of external power supply power supply are respectively connected with, and realize the power supply to electricity enhancing module.
Liquid reagent immerses circuit substrate and leads to circuit substrate deformed damaged and influence the planarization of reaction bed in order to prevent,
The present invention is handled in the gap between circuit substrate 171 and the second groove 16 using waterproof sealing.
When carrying out gas detection using above-mentioned electricity enhancing liquid phase chemiluminescence detecting, can specifically include following
Multiple steps.
Step A:
The electricity enhancing module 17 that will test device connect with external power supply and opens power supply, will test the inlet end 14 of device
It connects pneumatic filter and outlet side 15 is connected into vacuum pump, enter filtered gas to be detected in reactor 1.Wherein,
The external power supply of electric boost module can be DC voltage or alternating voltage.
Step B:
The liquid feeding end 12 and outlet end 13 that will test device are all connected with peristaltic pump, enter detection reagent in reactor 1 simultaneously
It diffuses to reaction bed 18 and forms uniform liquid film.Wherein it is preferred to which the liquid speed degree out for controlling detection device is the 1.5 of feed speed
~2 times.
Step C:
Heterogeneousization occurs into the detection reagent on the object gas and reaction bed 18 in the gas to be detected of reactor 1
Luminescence-producing reaction is learned, the chemiluminescence signal through electricity enhancing module enhancing that will test is converted to electric signal V, while utilizing reaction
Temperature T is converted to the target gas levels in gas to be detected.
The present invention is further explained in the light of specific embodiments.
Firstly, assembling forms the electricity enhancing liquid phase chemiluminescence detecting of structure as shown in Figure 1.
Electricity enhancing liquid phase chemiluminescence detection is carried out using above-mentioned apparatus later.
Specific steps are as follows:
Step 1: the electricity enhancing module that will test device is connected by the positive and negative terminal of electrode connecting hole and external power supply, open-minded
Power supply；
Step 2: will test the inlet end connection pneumatic filter of device and outlet side is connected into vacuum pump, in vacuum pump
Under effect, enter filtered gas to be detected in reactor by inlet end；
Step 3: the liquid feeding end and outlet end that will test device are all connected with peristaltic pump, under the action of liquid feeding end peristaltic pump,
Detection reagent is set to enter in feed liquor cushion chamber by liquid feeding end and diffuse to instead via the first strongly hydrophilic superfine fibre obturator
Answer bed, detection reagent seepage flow and spreads under gravity and forms uniform liquid film on the surface of reaction bed；
Step 4: into the detection reagent on the object gas and reaction bed in the gas to be detected of reactor in liquid phase
Heterogeneous phase chemistry luminescence-producing reaction occurs for interface；Under the action of applied voltage in electricity enhancing module, between printed circuitry grids
Chemiluminescence it is enhanced, generated chemiluminescence signal increases；
Step 5: detecting the optical signal of reaction bed surface chemistry luminescence-producing reaction generation using photoelectric sensing unit and be converted to
Electric signal V is detected current reaction temperature T using temperature sensing module, current mesh is converted to after computer calculation processing
Standard gas bulk concentration.
In conclusion the configuration of the present invention is simple, being easily achieved and at low cost, it can effectively enhance the chemistry hair of detection architecture
Optical signal improves the sensitivity of detection method.The present invention be different from it is traditional can only be from agent prescription, detector structure size etc.
Factor sensitized chemiluminescence detects the mode of signal, provides new approaches to the enhanced sensitivity mode of detection method, helps to improve inspection
The sensitivity of survey technology pushes the development of liquid phase chemiluminescence detection technology.
The invention is not limited to specific embodiments above-mentioned.The present invention, which expands to, any in the present specification to be disclosed
New feature or any new combination, and disclose any new method or process the step of or any new combination.
Claims (10)
1. a kind of electricity enhancing liquid phase chemiluminescence detecting, which is characterized in that the reactor of the detection device includes anti-
Device main body, electricity enhancing module and reaction bed, the reactor body is answered to be provided with liquid feeding end, outlet end, inlet end and outlet side,
Offered on reactor body the first groove for being capable of forming reaction chamber and the first groove and liquid feeding end, outlet end, inlet end and
Outlet side is connected to, and the second groove is offered on the bottom surface of the first groove, and electricity enhancing module is arranged in the second groove, reaction bed
It is arranged on the upper surface of electricity enhancing module and is bonded therewith.
2. electricity enhancing liquid phase chemiluminescence detecting according to claim 1, which is characterized in that described device is also wrapped
Opacus shell, optical window and photoelectric sensing unit are included, optical window is arranged between reactor and opacus shell, and reactor passes through reactor
The first groove and opacus shell of main body form closed reaction chamber and the reaction chamber is located at the side of optical window, photoelectric sensing
Unit is mounted on the other side in opacus shell and being located at optical window.
3. electricity enhancing liquid phase chemiluminescence detecting according to claim 1, which is characterized in that first groove
For diamond shape slot, second groove is the bar shaped reactive tank being arranged in the middle part of the bottom surface of diamond shape slot, it is described electricity enhancing module and
Reaction bed is arranged in the bar shaped reactive tank and the upper surface of the reaction bed is slightly below the upper surface of the diamond shape slot.
4. electricity enhancing liquid phase chemiluminescence detecting according to claim 3, which is characterized in that the liquid feeding end,
Outlet end, inlet end and outlet side are located at four apexes of the diamond shape slot, wherein liquid feeding end is located at the upper of diamond shape slot
End and the upper end for being located at bar shaped reactive tank, outlet end are located at the lower end of diamond shape slot and are located at the lower end of bar shaped reactive tank, inlet end
The left and right ends of diamond shape slot are located at outlet side.
5. electricity enhancing liquid phase chemiluminescence detecting according to claim 1, which is characterized in that the electricity enhancing mould
Block includes circuit substrate and the printed circuit for being located at circuit substrate upper surface, and the printed circuit is the copper for being etched into specific shape
Layer and surface carried out turmeric processing, the gap between the circuit substrate and the second groove using waterproof sealing processing.
6. electricity enhancing liquid phase chemiluminescence detecting according to claim 5, which is characterized in that the printed circuit
For the lattice structure being interspersed, printed circuit is positive and negative by the electrode connecting hole of reactor the top and external power supply power supply
Pole is respectively connected with.
7. electricity enhancing liquid phase chemiluminescence detecting according to claim 1, which is characterized in that the liquid feeding end packet
Liquid inlet joint and the feed liquor cushion chamber that liquid inlet joint end is set are included, is filled with the first strongly hydrophilic in the feed liquor cushion chamber
Superfine fibre obturator and the first strongly hydrophilic superfine fibre obturator are close to the reaction bed setting.
8. a kind of electricity enhancing liquid phase chemical luminescence detection method, which is characterized in that use any one of claims 1 to 7 institute
The electricity enhancing liquid phase chemiluminescence detecting stated carries out gas detection.
9. electricity enhancing liquid phase chemical luminescence detection method according to claim 8, which is characterized in that the detection method
The following steps are included:
A, the electricity enhancing module that will test device connect with external power supply and opens power supply, will test the inlet end connection gas of device
Outlet side is simultaneously connected vacuum pump by body filter, enters filtered gas to be detected in reactor；
B, the liquid feeding end and outlet end that will test device are all connected with peristaltic pump, enter detection reagent in reactor and diffuse to anti-
Bed is answered to form uniform liquid film；
C, heterogeneous phase chemistry hair occurs into the detection reagent on the object gas and reaction bed in the gas to be detected of reactor
Light reaction, the chemiluminescence signal through electricity enhancing module enhancing that will test is converted to electric signal V, while utilizing reaction temperature
T is converted to the target gas levels in gas to be detected.
10. electricity enhancing liquid phase chemical luminescence detection method according to claim 9, which is characterized in that control the inspection
The liquid speed degree that goes out for surveying device is 1.5~2 times of feed speed, and the external power supply of the electricity boost module is DC voltage or exchange
Voltage.
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| CN111693516A (en) * | 2020-05-07 | 2020-09-22 | 四川轻化工大学 | Gas-liquid phase electrochemical luminescence detection device and detection method |
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| CN109030468B (en) | 2024-03-22 |
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