SU643792A1 - Inversion-voltamperometric method of determining arsenate-ions in aqueous solutions - Google Patents

Inversion-voltamperometric method of determining arsenate-ions in aqueous solutions

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Publication number
SU643792A1
SU643792A1 SU762435633A SU2435633A SU643792A1 SU 643792 A1 SU643792 A1 SU 643792A1 SU 762435633 A SU762435633 A SU 762435633A SU 2435633 A SU2435633 A SU 2435633A SU 643792 A1 SU643792 A1 SU 643792A1
Authority
SU
USSR - Soviet Union
Prior art keywords
arsenate
ions
plus
inversion
determining
Prior art date
Application number
SU762435633A
Other languages
Russian (ru)
Inventor
Матвей Сафонович Захаров
Владимир Васильевич Пнев
Ксения Сергеевна Парубочая
Original Assignee
Тюменский индустриальный институт
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Тюменский индустриальный институт filed Critical Тюменский индустриальный институт
Priority to SU762435633A priority Critical patent/SU643792A1/en
Application granted granted Critical
Publication of SU643792A1 publication Critical patent/SU643792A1/en

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  • Investigating Or Analyzing Non-Biological Materials By The Use Of Chemical Means (AREA)
  • Other Investigation Or Analysis Of Materials By Electrical Means (AREA)

Description

плюс 0,17 В при скорости изменени  потенавала O,2S В/минplus 0.17 V at the rate of change of potential O, 2S V / min

Число кулонов под пикомг соответствющее количеству осажденного арсенатаеThe number of pendants under picomg corresponding to the amount of precipitated arsenate

линейно зависит от произведени  кон централии арсенат-ионов в растворе на врем  предэлектролиза, что позвол ет вести определение с кспольаованием калибровочного графика в координата сlinearly depends on the product of the concentration of arsenate ions in the solution for the time of pre-electrolysis, which makes it possible to carry out the definition with the use of the calibration graph in the coordinate with

O.cta.O.cta.

Предлагаемый способ определени  арсенат ионов отличаетс  простртойз хорошей чувствительностью к воспроизводимостью и могк&т быть использован в анализе природньос5 сточных и промышленньас во , в анализе химических 1зеак. тйвов высокой степени чистоты и материал OBj содержа,щий мышь к в качестве прнмесиоThe proposed method for the determination of arsenate ions is distinguished by prostrate good sensitivity to reproducibility and can not be used in the analysis of natural waste and industrial plants, in the analysis of chemical plants. high purity levels and an OBj material containing mouse as a preference.

Пример, Опрвдел.енив арсенат-™ ионов S растворе тетрабората натри ,, Раствор ют 1,91 г препарата в 100 M бидисти лйроваЕгной воды перенос т раствор в электрохимическую 4г-1ейку и дэаэрируют током инертного газа Сереб---- -р ный электрод полируют механически споласкивают 1 н азотной кислоты а 5% раствором аммиаке, после чего тщательно промывшот большим количествогл: зоды, внос т в пол рографическую и ведут определение названным способом .Example, Dissolving Arsenate- ™ of S ions in sodium tetraborate solution, 1.91 g of the drug is dissolved in 100 M of bidistil lyral water and the solution is transferred into an electrochemical 4g-1eik and deaerated with a current of inert gas of Serebre ---- ---- mechanically polishing is rinsed with 1N nitric acid in a 5% ammonia solution, after which thoroughly rinses with a large amount of water, enters into a polygraphic one and carry out the determination using the named method.

Предлагаемый способ позвол ет определ ть при продолж тальности предэл тролиза 15 мин г .-нои./л арсенат-ионов в pacTBopes относнтелька  ошибка при этом не превышает 5%The proposed method makes it possible to determine, with a duration of 15 min pre-elimination of gels-no. / L of arsenate ions, the relative error does not exceed 5% in pacTBopes.

Огфеделание арсенат ионов не мешают 20-кратные количества .хроматоз ISO-KpaTHbie количе-отва молибдатовг 500- Кратньш количества вольфрал атоБг. Мешают галагенид-ионь, с лз.ер-жа.цкес  в растворе в эквивалентных количествах:Refinement arsenate ions do not interfere with 20-fold amounts. Chromatosis ISO-KpaTHbie Quantity-otv molybdatovg 500- The number of tungsten atoBg. Galogenid-ion, with lz.er-zh.tskes in solution in equivalent quantities, interfere:

Claims (1)

Формулаизобретенк Formula invented Инверсионно-во.г1ьт--ампйрометрический способ определени  арсенат-™ионов в вод- ньж растворах nyTefvi концентрировани  исследуемых ионов на электроде с последующей регистрацией пол рнаалиоггных кривых электрорастворенийг о т л и ч а™ до ш и и с   темд что., с делью повышени  точности и селективностид арсенат серебра кощдентрируют на фоне индиф-фата кали  ацетата или тетрабората натри  в диапазоне потенциалов плюс OjSS плюс Of,S8 В с пос едзЮщей регистрацией пол ризацконньйс кривых при линейной развертке потенциала причег«( пстен- циал пика регистрируетс  в интервале плюс 0,28 - плюс 0,17 Bs ферентного электролита нитрата или сульInversion-in-line is an ampyrometric method for determining arsenate-™ ions in aqueous solutions of nyTefvi concentrating the investigated ions on the electrode, followed by recording the polarogram of the electromotive solutions of melting h and h a ™ to w and even with that. Increased accuracy and selectivity of silver arsenate are boosted against the background of indium potassium acetate or sodium tetraborate in the range of potentials plus OjSS plus Of, S8 B with the subsequent registration of polarization curves with a linear sweep of the procheg potential (the peak of egistriruets range plus 0,28 - 0,17 Bs plus ferentnogo electrolyte nitrate or sul
SU762435633A 1976-12-27 1976-12-27 Inversion-voltamperometric method of determining arsenate-ions in aqueous solutions SU643792A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SU762435633A SU643792A1 (en) 1976-12-27 1976-12-27 Inversion-voltamperometric method of determining arsenate-ions in aqueous solutions

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SU762435633A SU643792A1 (en) 1976-12-27 1976-12-27 Inversion-voltamperometric method of determining arsenate-ions in aqueous solutions

Publications (1)

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SU643792A1 true SU643792A1 (en) 1979-01-25

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SU762435633A SU643792A1 (en) 1976-12-27 1976-12-27 Inversion-voltamperometric method of determining arsenate-ions in aqueous solutions

Country Status (1)

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SU (1) SU643792A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103472109B (en) * 2013-03-28 2015-06-17 浙江大学 Arsenite solid electrode using metal wire as base material and preparation method thereof

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103472109B (en) * 2013-03-28 2015-06-17 浙江大学 Arsenite solid electrode using metal wire as base material and preparation method thereof

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