Extraction-spectrofluorimetric determination of thallium using cryptand ethers

被引：9

作者：

García, EA ^{[1
]}

Gomis, DB ^{[1
]}

机构：

[1] Univ Oviedo, Dept Phys & Analyt Chem, E-33006 Oviedo, Spain

来源：

ANALYTICAL LETTERS | 2002年 / 35卷 / 14期

关键词：

thallium; spectrofluorimetry; cryptand ether; extraction;

D O I：

10.1081/AL-120016107

中图分类号：

O65 [分析化学];

学科分类号：

070302 [分析化学]; 081704 [应用化学];

摘要：

A spectrofluorimetric study of the extraction of thallium with 1,2-dichloroethane as an ion pair formed between the cryptand 2.2.1 thallium complex and the eosinate counterion is described. The detection limit for thallium is 0.9 ng/mL and the linear working range is up to 150 ng/mL of thallium. The relative standard deviation was found to be 2.0% at the 100 ng/mL level. The proposed method was tested for the determination of thallium in seawater.

引用

页码：2337 / 2346

页数：10

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