SU1647398A1 - Method of determination of copper (ii) - Google Patents
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- SU1647398A1 SU1647398A1 SU884608510A SU4608510A SU1647398A1 SU 1647398 A1 SU1647398 A1 SU 1647398A1 SU 884608510 A SU884608510 A SU 884608510A SU 4608510 A SU4608510 A SU 4608510A SU 1647398 A1 SU1647398 A1 SU 1647398A1
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- USSR - Soviet Union
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- copper
- solution
- complex
- determination
- iii
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- 238000000034 method Methods 0.000 title claims abstract description 9
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 title abstract description 7
- 229910052802 copper Inorganic materials 0.000 title abstract description 6
- 239000010949 copper Substances 0.000 title abstract description 6
- JPVYNHNXODAKFH-UHFFFAOYSA-N Cu2+ Chemical compound [Cu+2] JPVYNHNXODAKFH-UHFFFAOYSA-N 0.000 claims abstract description 12
- ZPWVASYFFYYZEW-UHFFFAOYSA-L dipotassium hydrogen phosphate Chemical compound [K+].[K+].OP([O-])([O-])=O ZPWVASYFFYYZEW-UHFFFAOYSA-L 0.000 claims description 3
- 229910000396 dipotassium phosphate Inorganic materials 0.000 claims description 3
- 238000000605 extraction Methods 0.000 claims description 3
- -1 2-pyridylazo Chemical group 0.000 claims description 2
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 2
- 239000003960 organic solvent Substances 0.000 claims description 2
- 150000001875 compounds Chemical class 0.000 claims 1
- 125000001449 isopropyl group Chemical group [H]C([H])([H])C([H])(*)C([H])([H])[H] 0.000 claims 1
- 239000002904 solvent Substances 0.000 claims 1
- KFZMGEQAYNKOFK-UHFFFAOYSA-N Isopropanol Chemical compound CC(C)O KFZMGEQAYNKOFK-UHFFFAOYSA-N 0.000 abstract description 24
- 229910001385 heavy metal Inorganic materials 0.000 abstract description 5
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 abstract description 4
- BVKZGUZCCUSVTD-UHFFFAOYSA-L Carbonate Chemical compound [O-]C([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-L 0.000 abstract description 3
- 229910019142 PO4 Inorganic materials 0.000 abstract description 3
- 150000001450 anions Chemical class 0.000 abstract description 3
- 239000010452 phosphate Substances 0.000 abstract description 3
- 239000002351 wastewater Substances 0.000 abstract description 3
- KRHYYFGTRYWZRS-UHFFFAOYSA-M Fluoride anion Chemical compound [F-] KRHYYFGTRYWZRS-UHFFFAOYSA-M 0.000 abstract description 2
- LLYOXZQVOKALCD-UHFFFAOYSA-N chembl1400298 Chemical compound OC1=CC=C2C=CC=CC2=C1N=NC1=CC=CC=N1 LLYOXZQVOKALCD-UHFFFAOYSA-N 0.000 abstract description 2
- LWIHDJKSTIGBAC-UHFFFAOYSA-K tripotassium phosphate Chemical compound [K+].[K+].[K+].[O-]P([O-])([O-])=O LWIHDJKSTIGBAC-UHFFFAOYSA-K 0.000 abstract 2
- 229910000160 potassium phosphate Inorganic materials 0.000 abstract 1
- 235000011009 potassium phosphates Nutrition 0.000 abstract 1
- 239000000243 solution Substances 0.000 description 11
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 6
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 5
- PTFCDOFLOPIGGS-UHFFFAOYSA-N Zinc dication Chemical compound [Zn+2] PTFCDOFLOPIGGS-UHFFFAOYSA-N 0.000 description 5
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 description 3
- 239000007864 aqueous solution Substances 0.000 description 3
- 229910052793 cadmium Inorganic materials 0.000 description 3
- BDOSMKKIYDKNTQ-UHFFFAOYSA-N cadmium atom Chemical compound [Cd] BDOSMKKIYDKNTQ-UHFFFAOYSA-N 0.000 description 3
- 229910052742 iron Inorganic materials 0.000 description 3
- 239000012044 organic layer Substances 0.000 description 3
- NLKNQRATVPKPDG-UHFFFAOYSA-M potassium iodide Chemical compound [K+].[I-] NLKNQRATVPKPDG-UHFFFAOYSA-M 0.000 description 3
- 238000000926 separation method Methods 0.000 description 3
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 2
- HEDRZPFGACZZDS-UHFFFAOYSA-N Chloroform Chemical compound ClC(Cl)Cl HEDRZPFGACZZDS-UHFFFAOYSA-N 0.000 description 2
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 2
- VMQMZMRVKUZKQL-UHFFFAOYSA-N Cu+ Chemical compound [Cu+] VMQMZMRVKUZKQL-UHFFFAOYSA-N 0.000 description 2
- GYHNNYVSQQEPJS-UHFFFAOYSA-N Gallium Chemical compound [Ga] GYHNNYVSQQEPJS-UHFFFAOYSA-N 0.000 description 2
- WAEMQWOKJMHJLA-UHFFFAOYSA-N Manganese(2+) Chemical compound [Mn+2] WAEMQWOKJMHJLA-UHFFFAOYSA-N 0.000 description 2
- 229910052788 barium Inorganic materials 0.000 description 2
- DSAJWYNOEDNPEQ-UHFFFAOYSA-N barium atom Chemical compound [Ba] DSAJWYNOEDNPEQ-UHFFFAOYSA-N 0.000 description 2
- 229910052790 beryllium Inorganic materials 0.000 description 2
- ATBAMAFKBVZNFJ-UHFFFAOYSA-N beryllium atom Chemical compound [Be] ATBAMAFKBVZNFJ-UHFFFAOYSA-N 0.000 description 2
- 229910052797 bismuth Inorganic materials 0.000 description 2
- JCXGWMGPZLAOME-UHFFFAOYSA-N bismuth atom Chemical compound [Bi] JCXGWMGPZLAOME-UHFFFAOYSA-N 0.000 description 2
- 229910052791 calcium Inorganic materials 0.000 description 2
- 239000011575 calcium Substances 0.000 description 2
- 238000011088 calibration curve Methods 0.000 description 2
- 239000003153 chemical reaction reagent Substances 0.000 description 2
- 229910052804 chromium Inorganic materials 0.000 description 2
- 239000011651 chromium Substances 0.000 description 2
- XLJKHNWPARRRJB-UHFFFAOYSA-N cobalt(2+) Chemical compound [Co+2] XLJKHNWPARRRJB-UHFFFAOYSA-N 0.000 description 2
- JAWGVVJVYSANRY-UHFFFAOYSA-N cobalt(3+) Chemical compound [Co+3] JAWGVVJVYSANRY-UHFFFAOYSA-N 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- 229910052733 gallium Inorganic materials 0.000 description 2
- 239000010842 industrial wastewater Substances 0.000 description 2
- 229910052759 nickel Inorganic materials 0.000 description 2
- BWHMMNNQKKPAPP-UHFFFAOYSA-L potassium carbonate Chemical compound [K+].[K+].[O-]C([O-])=O BWHMMNNQKKPAPP-UHFFFAOYSA-L 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 238000011084 recovery Methods 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- ZSLUVFAKFWKJRC-IGMARMGPSA-N 232Th Chemical compound [232Th] ZSLUVFAKFWKJRC-IGMARMGPSA-N 0.000 description 1
- KRKNYBCHXYNGOX-UHFFFAOYSA-K Citrate Chemical compound [O-]C(=O)CC(O)(CC([O-])=O)C([O-])=O KRKNYBCHXYNGOX-UHFFFAOYSA-K 0.000 description 1
- FEWJPZIEWOKRBE-JCYAYHJZSA-N Dextrotartaric acid Chemical compound OC(=O)[C@H](O)[C@@H](O)C(O)=O FEWJPZIEWOKRBE-JCYAYHJZSA-N 0.000 description 1
- VTLYFUHAOXGGBS-UHFFFAOYSA-N Fe3+ Chemical compound [Fe+3] VTLYFUHAOXGGBS-UHFFFAOYSA-N 0.000 description 1
- JLVVSXFLKOJNIY-UHFFFAOYSA-N Magnesium ion Chemical compound [Mg+2] JLVVSXFLKOJNIY-UHFFFAOYSA-N 0.000 description 1
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 description 1
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 description 1
- VEQPNABPJHWNSG-UHFFFAOYSA-N Nickel(2+) Chemical compound [Ni+2] VEQPNABPJHWNSG-UHFFFAOYSA-N 0.000 description 1
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 description 1
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 1
- 229910052776 Thorium Inorganic materials 0.000 description 1
- LCKIEQZJEYYRIY-UHFFFAOYSA-N Titanium ion Chemical compound [Ti+4] LCKIEQZJEYYRIY-UHFFFAOYSA-N 0.000 description 1
- 229910052770 Uranium Inorganic materials 0.000 description 1
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 1
- LAUSOOYIVIWSRF-UHFFFAOYSA-N [Cd+] Chemical compound [Cd+] LAUSOOYIVIWSRF-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- REDXJYDRNCIFBQ-UHFFFAOYSA-N aluminium(3+) Chemical compound [Al+3] REDXJYDRNCIFBQ-UHFFFAOYSA-N 0.000 description 1
- BFNBIHQBYMNNAN-UHFFFAOYSA-N ammonium sulfate Chemical compound N.N.OS(O)(=O)=O BFNBIHQBYMNNAN-UHFFFAOYSA-N 0.000 description 1
- 229910052921 ammonium sulfate Inorganic materials 0.000 description 1
- 235000011130 ammonium sulphate Nutrition 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- WLZRMCYVCSSEQC-UHFFFAOYSA-N cadmium(2+) Chemical compound [Cd+2] WLZRMCYVCSSEQC-UHFFFAOYSA-N 0.000 description 1
- 150000004649 carbonic acid derivatives Chemical class 0.000 description 1
- JOPOVCBBYLSVDA-UHFFFAOYSA-N chromium(6+) Chemical compound [Cr+6] JOPOVCBBYLSVDA-UHFFFAOYSA-N 0.000 description 1
- 229910017052 cobalt Inorganic materials 0.000 description 1
- 239000010941 cobalt Substances 0.000 description 1
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 description 1
- CXTABWUBRGBDFL-UHFFFAOYSA-N copper;manganese(2+) Chemical compound [Mn+2].[Cu+2] CXTABWUBRGBDFL-UHFFFAOYSA-N 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 150000004673 fluoride salts Chemical class 0.000 description 1
- 229910052738 indium Inorganic materials 0.000 description 1
- APFVFJFRJDLVQX-UHFFFAOYSA-N indium atom Chemical compound [In] APFVFJFRJDLVQX-UHFFFAOYSA-N 0.000 description 1
- 230000002452 interceptive effect Effects 0.000 description 1
- 231100000053 low toxicity Toxicity 0.000 description 1
- 229910052748 manganese Inorganic materials 0.000 description 1
- 239000011572 manganese Substances 0.000 description 1
- BQPIGGFYSBELGY-UHFFFAOYSA-N mercury(2+) Chemical compound [Hg+2] BQPIGGFYSBELGY-UHFFFAOYSA-N 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
- 239000011591 potassium Substances 0.000 description 1
- 229910052700 potassium Inorganic materials 0.000 description 1
- 229910000027 potassium carbonate Inorganic materials 0.000 description 1
- 229910052761 rare earth metal Inorganic materials 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 229910052709 silver Inorganic materials 0.000 description 1
- 239000004332 silver Substances 0.000 description 1
- 150000003467 sulfuric acid derivatives Chemical class 0.000 description 1
- 229940095064 tartrate Drugs 0.000 description 1
- 231100000331 toxic Toxicity 0.000 description 1
- 230000002588 toxic effect Effects 0.000 description 1
- JFALSRSLKYAFGM-UHFFFAOYSA-N uranium(0) Chemical compound [U] JFALSRSLKYAFGM-UHFFFAOYSA-N 0.000 description 1
- 229910052725 zinc Inorganic materials 0.000 description 1
- 239000011701 zinc Substances 0.000 description 1
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- Investigating Or Analyzing Non-Biological Materials By The Use Of Chemical Means (AREA)
Abstract
Изобретение относитс к способам определени меди (II) и может быть использовано дл повышени селективности анализа сложных по составу сточных вод. Способ заключаетс в переводе меди (II) в комплексное соединение с 1-(2-пиридилазо)-2-нафто- лом, экстракции образующегос комплекса изопропиловым спиртом в присутствии 2,0- 2,5 М раствора вторичного фосфорнокислого кали . Определение меди предложенным способом проверено на сточных водах, содержащих т желые металлы, большие количества фосфат-, фторид-, карбонат- и других анионов. 3 табл.This invention relates to methods for determining copper (II) and can be used to increase the selectivity of an analysis of complex wastewater. The method consists in converting copper (II) to a complex with 1- (2-pyridylazo) -2-naphthol, extracting the complex formed with isopropyl alcohol in the presence of a 2.0-2.5 M solution of potassium phosphate. The determination of copper by the proposed method was tested on wastewater containing heavy metals, large quantities of phosphate, fluoride, carbonate, and other anions. 3 tab.
Description
Изобретение относитс к способам определени меди (II) в сложных по составу промышленных сточных водах, содержащих т желые металлы, а также большие количества фосфат-, фторид-, карбонат- и других анионов.The invention relates to methods for the determination of copper (II) in complex industrial wastewater containing heavy metals, as well as large quantities of phosphate, fluoride, carbonate and other anions.
Цель изобретени - повышение селективности анализа.The purpose of the invention is to increase the selectivity of the analysis.
В услови х эксперимента определению 1 мкг меди (II) не мешают: тыс чекратныеUnder the conditions of the experiment, the determination of 1 μg of copper (II) does not interfere: thousands of times
количества: магний (II), кальций (II), барий (I), алюминий (III), редкоземельные элементы, титан (IV), свинец (II), висмут (lit), индий (III), галлий (III), хром (III, VI), молибден (VI), кобальт (III), железо (III) стократныеamounts: magnesium (II), calcium (II), barium (I), aluminum (III), rare earth elements, titanium (IV), lead (II), bismuth (lit), indium (III), gallium (III), chromium (III, VI), molybdenum (VI), cobalt (III), iron (III) hundredfold
количества: серебро (1), бериллий (П), торий (IV), уран, цинк (II), фториды , сульфаты, карбонаты, цитрат- и тартрат - анионы дес тикратные количества: марганец (II), кадмий (Н)quantities: silver (1), beryllium (P), thorium (IV), uranium, zinc (II), fluorides, sulfates, carbonates, citrate and tartrate - anions tenfold amounts: manganese (II), cadmium (H)
сопоставимые количества никел (II) и кобальта (II).comparable amounts of nickel (II) and cobalt (II).
Кобальт (II) в анализируемом растворе предварительно окисл ют до кобальта (III), который в услови х эксперимента не мешает в 1000-кратных количествах. Ртуть (II) не мешает в присутствии 0,01 М иодида кали .Cobalt (II) in the analyzed solution is preliminarily oxidized to cobalt (III), which under the conditions of the experiment does not interfere in 1000-fold amounts. Mercury (II) does not interfere in the presence of 0.01 M potassium iodide.
Положительный эффект может быть получен только при использовании изопро- пилового спирта как органического растворител , В случае хлороформа или, например, бензола экстракционное равновесие в системе устанавливаетс более 10 мин, степень извлечени меди и других т желых металлов зависит от пор дка сливани реактивов, температуры, других факторов и результаты невоспроизводимы. Важным преимуществом изопропилового спирта вл етс также его мала токсичность и уменьшение летучести экстракта за счет образовани волно- спиртовой смеси (табл. 1).A positive effect can be obtained only when using isopropyl alcohol as an organic solvent. In the case of chloroform or, for example, benzene, the extraction equilibrium in the system is established for more than 10 minutes, the degree of recovery of copper and other heavy metals depends on the order of discharge of reagents, temperature, other factors and results are not reproducible. An important advantage of isopropyl alcohol is also its low toxicity and reduced volatility of the extract due to the formation of a wave alcohol mixture (Table 1).
Вторичный фосфат кали (КзНРОз) устран ет мешающее вли ние т желых металлов и высаливает изопропиловый спирт. Применение других высаливателей (фтооиЈSecondary potassium phosphate (CsNROS) eliminates the interfering effects of heavy metals and releases salt of isopropyl alcohol. The use of other vysalivateley (phtoiЈ
О 4 VI 00 ОO 4 VI 00 O
0000
да кали , карбоната кали , сульфата аммони ) не приводит ((положительному результату из- за снижени селективности экстракции: вместе с медью (II) экстрагируютс марганец (И), цинк (II), кадмий (II). кобальт (И), никель (II).yes potassium, potassium carbonate, ammonium sulfate) does not result ((positive result due to lower extraction selectivity: together with copper (II) manganese (I), zinc (II), cadmium (II) are extracted. cobalt (And), nickel (Ii)
Концентраци вторичного фосфата кали в интервале 2,0-2.5 М вл етс оптимальной , так как при концентрации менее 2 М снижаетс степень извлечени меди (табл. 2), а при большей чем 2,5 М увеличиваетс в зкость раствора. Кроме того, в этом случае при большем расходе реагентов не достигаетс никаких технологических преимуществ , поэтому увеличение концентра- ции К2НР04 выше 2,5 М нецелесообразно.The concentration of secondary potassium phosphate in the range of 2.0-2.5 M is optimal, since at a concentration of less than 2 M, the degree of copper recovery decreases (Table 2), and at greater than 2.5 M, the viscosity of the solution increases. In addition, in this case, with a greater consumption of reagents, no technological advantages are achieved, therefore, an increase in the concentration of K2HP04 above 2.5 M is impractical.
Пример1.К5мл водного раствора, содержащего по 106 мкг кальци (If), свинца (II), висмута (И), железа (ill), цинка (II), по 5 мкг марганца (II), кадми (II), никел (II) и 1 мкг меди (II), приливают 10 мл 3 М раствора КаНРСм. 15 мл 0,05%-ного раствора 1-(2-пи- ридилазо)-2-нафтола (ПАН) в изопропиловом спирте и экстрагируют 30 с. Концентраци полученного раствора по К2НР04 2 моль/л. После расслоени фаз органический слой фильтруют через сухой бумажный фильтр в кювету см и фотометрмруюг относительно холостого опыта при Я 540 нм на КФК- 2. Содержание меди (II) определ ют по градуировочному графику, построенному по стандартным растворам меди. Метрологические характеристики методики, подтверждающие ее правильность, приведены в табл. 3.Example 1. K5ml of an aqueous solution containing 106 µg of calcium (If), lead (II), bismuth (I), iron (ill), zinc (II), 5 µg manganese (II), cadmium (II), nickel ( II) and 1 µg of copper (II), poured 10 ml of 3 M solution of Kanpcm. 15 ml of a 0.05% solution of 1- (2-pyridylazo) -2-naphthol (PAN) in isopropyl alcohol and extracted with 30 s. The concentration of the resulting solution at K2HP04 is 2 mol / L. After separation of the phases, the organic layer is filtered through a dry paper filter in a cm cuvette and photometer relative to the blank test at I 540 nm at KFK-2. The copper (II) content is determined by a calibration curve constructed using standard copper solutions. Metrological characteristics of the methodology, confirming its correctness, are given in Table. 3
П р и м е р 2. К 5 мл водного раствора, содержащего 1 мг свинца (И), железа (Ш). хрома(VI), по 100 мкг берилли (И), цинка (II) и 3 мкг меди (И), прибавл ют 10 мл 3,6 М К2НРО/1. Концентраци полученного раство- ра по фосфат-ионам состав т 2,4 М. Приливают 15 мл 0,05%-ного раствора ПАН в изопропилоаом спирте и встр хивают 30 с. После, расслоени фаз органический слой фильтруют через сухой бумажный фильтр в PRI mme R 2. To 5 ml of an aqueous solution containing 1 mg of lead (I), iron (III). chromium (VI), 100 µg of beryllium (I), zinc (II) and 3 µg of copper (I) are added, 10 ml of 3.6 M K2HPO / 1 are added. The concentration of the resulting solution in phosphate ions is 2.4 M. 15 ml of a 0.05% solution of PAN in isopropyl alcohol are poured in and shaken for 30 s. After separation of the phases, the organic layer is filtered through a dry paper filter in
кювету см и фотометрируют на КФК-2 относительно холостого опыта при Я 540 нм, Содержание меди (II) в анализируемом растворе рассчитывают по градуировочному графику.see the cuvette and photometrically with KFK-2 relative to the blank test at I 540 nm. The copper (II) content in the analyzed solution is calculated according to the calibration curve.
Метрологическа обработка результатов анализа представлена в табл. 3.The metrological processing of the analysis results is presented in Table. 3
П р и м е р 3. К 15 мл водного раствора, содержащего 1 мг бари (II), галли (III), алюмини (И I), по 100 мкг цинка (II), марганца (И), кадми (Я) и 50 мкг меди (II), с концентрацией по К2НР04 2,5 М прибавл ют 15 мл 0,05%-ного раствора ПАН в изопропиловом спирте и встр хивают 30 с. После расслоени фаз органический слой фильтруют в кювету (0,5 см и фотометрируют.на КФК-2 относительно холостого опыта при А 540 нм. Содержание меди (II) в анализируемом растворе рассчитывают по градуировочному графику. Метрологическа обработка ре- зультатоа анализа представлена в табл. 3.PRI me R 3. To 15 ml of an aqueous solution containing 1 mg of barium (II), gallium (III), aluminum (I), 100 μg each of zinc (II), manganese (I), cadmium (I) and 50 µg of copper (II), with a 2.5 M concentration of 2.5 M, was added 15 ml of a 0.05% PAN solution in isopropyl alcohol and shaken for 30 seconds. After separation of the phases, the organic layer is filtered in a cuvette (0.5 cm and photometric. At KFK-2 relative to the blank run at А 540 nm. The copper (II) content in the analyzed solution is calculated according to the calibration graph. The metrological processing of the analysis is presented in Table 3.
Согласно предлагаемому способу медь (II) селективно экстрагируетс в малотоксичный изопропиловый спирт, что позвол ет определить медь (И) в сложных по составу промышленных сточных водах, содержащих т желые металлы, фосфат-, вторид-, карбонат- и другие анионы. Методика определени меди в сточных водах, содержащих также железо (И), хром (III, Vf), кадмий (if), цинк (Я), внедрена в МГСПИ г. Москва и на предпри ти х Минсв зи СССР,According to the proposed method, copper (II) is selectively extracted into low toxic isopropyl alcohol, which makes it possible to determine copper (I) in complex industrial wastewater containing heavy metals, phosphate, secondary, carbonate, and other anions. The method for determination of copper in wastewater containing iron (I), chromium (III, Vf), cadmium (if), zinc (I), was introduced at Moscow State Pedagogical Institute of Moscow and at enterprises of the USSR Ministry of Communications,
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU884608510A SU1647398A1 (en) | 1988-11-24 | 1988-11-24 | Method of determination of copper (ii) |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU884608510A SU1647398A1 (en) | 1988-11-24 | 1988-11-24 | Method of determination of copper (ii) |
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| SU1647398A1 true SU1647398A1 (en) | 1991-05-07 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2223488C1 (en) * | 2002-10-25 | 2004-02-10 | Красноярский государственный университет | Indicator composition for determining copper(ii) in aqueous solutions |
| RU2253864C1 (en) * | 2004-02-24 | 2005-06-10 | Государственное образовательное учреждение высшего профессионального образования "Красноярский государственный университет" | Indicator composition for joint determination of copper(ii) and manganese(ii) in aqueous solutions |
-
1988
- 1988-11-24 SU SU884608510A patent/SU1647398A1/en active
Non-Patent Citations (1)
| Title |
|---|
| Berger W., Qualitive Kationen analyse unter vermendung von metallindicator.-Z. anal, chem., 1959, Bd. 171, № 34. s. 185-193. * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2223488C1 (en) * | 2002-10-25 | 2004-02-10 | Красноярский государственный университет | Indicator composition for determining copper(ii) in aqueous solutions |
| RU2253864C1 (en) * | 2004-02-24 | 2005-06-10 | Государственное образовательное учреждение высшего профессионального образования "Красноярский государственный университет" | Indicator composition for joint determination of copper(ii) and manganese(ii) in aqueous solutions |
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