DETERMINATION OF CADMIUM IN BIOLOGICAL SAMPLES BY INDUCTIVELY COUPLED PLASMA ATOMIC EMISSION-SPECTROMETRY AFTER EXTRACTION WITH 1,5-BIS(DI-2-PYRIDYLMETHYLENE) THIOCARBONOHYDRAZIDE

被引：7

作者：

ALMENDRO, JME ^{[1
]}

OJEDA, CB ^{[1
]}

DETORRES, AG ^{[1
]}

PAVON, JMC ^{[1
]}

机构：

[1] UNIV MALAGA,FAC SCI,DEPT ANALYT CHEM,E-29071 MALAGA,SPAIN

来源：

ANALYST | 1992年 / 117卷 / 11期

关键词：

SOLVENT EXTRACTION; INDUCTIVELY COUPLED PLASMA ATOMIC EMISSION SPECTROMETRY; CADMIUM; BIOLOGICAL SAMPLES;

D O I：

10.1039/an9921701749

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

An inductively coupled plasma atomic emission spectrometric method for the determination of trace amounts of cadmium after extraction of the metal into isobutyl methyl ketone containing 1,5-bis(di-2-pyridylmethylene) thiocarbonohydrazide is described. The optimum extraction conditions were evaluated from a critical study of the effects of pH, concentration of extractant, shaking time and ionic strength. The detection limit for cadmium is 0.1 ng ml-1 and the calibration is linear from 0.2 to 140 ng ml-1. The relative standard deviation for ten replicate measurements is 2.9% for 2 ng ml-1 of cadmium. Results from the analysis of some certified biological reference materials are given.

引用

页码：1749 / 1751

页数：3

共 13 条

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