EXTRACTION-VOLTAMMETRY METHOD OF DETERMINING ZINC, CADMIUM, LEAD, COPPER AND IRON IN SOLID SAMPLES OF NATURAL OBJECTS,申请号RU20080139840-传众专利搜索

EXTRACTION-VOLTAMMETRY METHOD OF DETERMINING ZINC, CADMIUM, LEAD, COPPER AND IRON IN SOLID SAMPLES OF NATURAL OBJECTS

申请公布号：RU2382355(C1)

申请号：RU20080139840

申请日期：2008.10.07

申请公布日期：2010.02.20

申请人：

GOSUDARSTVENNOE OBRAZOVATEL'NOE UCHREZHDENIE VYSSHEGO PROFESSIONAL'NOGO OBRAZOVANIJA "ALTAJSKIJ GOSUDARSTVENNYJ UNIVERSITET"

发明人：TEMEREV SERGEJ VASIL'EVICH;LOGINOVA OL'GA BORISOVNA

分类号：G01N27/48

主分类号：G01N27/48

摘要：FIELD: chemistry. ^ SUBSTANCE: method involves using a water-organic immiscible system to extract metals from solid particles of natural material. To prepare the extraction agent, 2M solutions of pharmacopoeial antipyrine and analytically pure 2 - aqueous sulphosalicylic acid are used in volume ratio of reagent solutions equal to 2:1 and thiacyanate anions are added in form of an analytically pure salt of potassium rhodanate in amount of 0.1 mol KSCN per litre of the mixture of reagents with subsequent cathode concentration and element-by-element gravimetric analysis of metals using a votammetric method in ex situ mode in a single chemical analysis act. ^ EFFECT: possibility of determining zinc, cadmium, lead and iron in a single chemical analysis act in an atomiser, reduced toxicity, use in large-scale monitoring. ^ 2 dwg, 3 tbl