Preconcentration Methods for Determination of Thallium in Natural Waters

被引：5

作者：

Arpadjan, Sonja ^{[1
]}

Petrova, Pavleta ^{[1
]}

Knutsson, Jesper ^{[1
]}

机构：

[1] Fac Chem, Bld J Bourchier 1, Sofia 1164, Bulgaria

来源：

EURASIAN JOURNAL OF ANALYTICAL CHEMISTRY | 2008年 / 3卷 / 01期

关键词：

thallium; water; preconcentration; solid-phase extraction; precipitation;

D O I：

10.12973/ejac.2008.00022a

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

Two preconcentration procedures for electrothermal atomic absorption (ETAAS) determination of thallium in mineral, spring, tap, river, underground and sea water were developed and compared: (i) Column solid phase extraction with new sandwich type disposable sorbent columns (CSPE) and (ii) Filtration of thallium dithiocarbamates through a Millipore filter of 0.45 mu m pore size followed by dissolution of the filter + precipitate in IBMK (PP) and introduction of the obtained organic slurry into the graphite furnace. With addition of indium as sorption and precipitation collector enrichment factors of 100 (CSPE) and 200 (PP) were achieved.

引用

页码：10 / 18

页数：9

共 11 条

[1] DETERMINATION OF TRACE-ELEMENTS IN ANALYTICAL-REAGENT GRADE SODIUM-SALTS BY ATOMIC-ABSORPTION SPECTROMETRY AND INDUCTIVELY-COUPLED PLASMA-ATOMIC EMISSION-SPECTROMETRY AFTER PRECONCENTRATION BY COLUMN SOLID-PHASE EXTRACTION [J].