RU2011128149A - METHOD FOR DETERMINING THALLIUM IN AQUEOUS SOLUTIONS AND TECHNOLOGICAL DRAINS BY THE INVERSION VOLTAMPEROMETRY METHOD - Google Patents

METHOD FOR DETERMINING THALLIUM IN AQUEOUS SOLUTIONS AND TECHNOLOGICAL DRAINS BY THE INVERSION VOLTAMPEROMETRY METHOD Download PDF

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RU2011128149A
RU2011128149A RU2011128149/28A RU2011128149A RU2011128149A RU 2011128149 A RU2011128149 A RU 2011128149A RU 2011128149/28 A RU2011128149/28 A RU 2011128149/28A RU 2011128149 A RU2011128149 A RU 2011128149A RU 2011128149 A RU2011128149 A RU 2011128149A
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thallium
ions
minus
technological
determining
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RU2011128149/28A
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RU2494386C2 (en
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Эльвира Маратовна Габдурахманова
Эдуард Владимирович Горчаков
Татьяна Святославовна Глызина
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Государственное образовательное учреждение высшего профессионального образования "Национальный исследовательский Томский политехнический университет"
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Abstract

Способ определения таллия в водных растворах или технологических сливах методом инверсионной вольтамперометрии, заключающийся в том, что таллий (III) переводят в таллий (I) в растворе и проводят вольтамперометрическое определение, отличающийся тем, что проводят накопление ионов таллия на графитовом электроде в перемешиваемом растворе в присутствии ионов платины (IV) в течение 60-120 с с последующей регистрацией анодных пиков селективного электроокисления таллия из интерметаллического соединения РtТlпри скорости развертки потенциала 50-100 мВ/с при потенциалах электролиза минус 1,0 В, а затем при минус 0,6 В на фоновом электролите 1 М HCl, концентрацию ионов таллия определяют по высоте анодного пика таллия на вольтамперной кривой в диапазоне потенциалов от 0,6 до 0,9 В относительно насыщенного хлоридсеребряного электрода методом добавок аттестованных смесей.A method for determining thallium in aqueous solutions or technological discharges by inversion voltammetry, which consists in the fact that thallium (III) is converted to thallium (I) in solution and voltammetric determination is carried out, characterized in that they accumulate thallium ions on a graphite electrode in a mixed solution in the presence of platinum (IV) ions for 60-120 s followed by registration of the anode peaks of selective thallium electrooxidation from the intermetallic compound PtTl at a potential sweep rate of 50-100 mV / at electrolysis potentials of minus 1.0 V, and then at minus 0.6 V on the background electrolyte 1 M HCl, the concentration of thallium ions is determined by the height of the anode peak of thallium on the current-voltage curve in the potential range from 0.6 to 0.9 V relative to saturated silver chloride electrode by the method of additives of certified mixtures.

Claims (1)

Способ определения таллия в водных растворах или технологических сливах методом инверсионной вольтамперометрии, заключающийся в том, что таллий (III) переводят в таллий (I) в растворе и проводят вольтамперометрическое определение, отличающийся тем, что проводят накопление ионов таллия на графитовом электроде в перемешиваемом растворе в присутствии ионов платины (IV) в течение 60-120 с с последующей регистрацией анодных пиков селективного электроокисления таллия из интерметаллического соединения РtхТlу при скорости развертки потенциала 50-100 мВ/с при потенциалах электролиза минус 1,0 В, а затем при минус 0,6 В на фоновом электролите 1 М HCl, концентрацию ионов таллия определяют по высоте анодного пика таллия на вольтамперной кривой в диапазоне потенциалов от 0,6 до 0,9 В относительно насыщенного хлоридсеребряного электрода методом добавок аттестованных смесей. A method for determining thallium in aqueous solutions or technological discharges by inversion voltammetry, which consists in the fact that thallium (III) is converted to thallium (I) in solution and voltammetric determination is carried out, characterized in that they accumulate thallium ions on a graphite electrode in a mixed solution in the presence of platinum (IV) ions for 60-120 s followed by registration of the anode peaks of selective thallium electrooxidation from the intermetallic compound Pt x Tl y at a potential sweep speed of 50-10 0 mV / s at electrolysis potentials of minus 1.0 V, and then at minus 0.6 V on the background electrolyte of 1 M HCl, the concentration of thallium ions is determined by the height of the anode peak of thallium on the current-voltage curve in the potential range from 0.6 to 0, 9 V relatively saturated silver chloride electrode by the method of additives of certified mixtures.
RU2011128149/28A 2011-07-07 2011-07-07 Method of determining thallium in aqueous solutions and process discharges by stripping voltammetry RU2494386C2 (en)

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SU848222A1 (en) * 1979-06-13 1981-07-23 Предприятие П/Я В-2330 Automatic machine for welding non-rotary butts
RU1822971C (en) * 1990-06-14 1993-06-23 Казанский государственный университет им.В.И.Ульянова-Ленина Method for determination of microquantity of heavy metals
UA77482C2 (en) * 2004-07-28 2006-12-15 Dumanskyi Inst For Colloid Che Method for determining content of thallium in aquatic environment by voltage-current characteristics
RU2338181C1 (en) * 2007-01-24 2008-11-10 Открытое Акционерное Общество "Научно-Производственное Предприятие "Буревестник" Voltammetric method for thallium detection in water media

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