DETERMINATION OF NICKEL IN BIOLOGICAL SAMPLES BY ETA-AAS AND ICP-AES AFTER ACIDIC DISSOLUTION (WITH MICROWAVE-HEATING AND PRECONCENTRATION BY LIQUID-LIQUID-EXTRACTION)

被引:2
作者
ALONSO, EV
DETORRES, AG
PAVON, JMC
机构
[1] Department of Analytical Chemistry, Faculty of Sciences, University of Málaga, Málaga
关键词
NICKEL ANALYSIS; BIOLOGICAL SAMPLES; MICROWAVE OVEN; PLASMA EMISSION SPECTROMETRY; ATOMIC ABSORPTION SPECTROMETRY;
D O I
10.1007/BF01243983
中图分类号
O65 [分析化学];
学科分类号
070302 ; 081704 ;
摘要
The determination of nickel by ETA-AAS and ICP-AES in biological samples with prior extraction into methyl isobutyl ketone with 1,5-bis(di-2-pyridylmethylene)thiocarbonohydrazide as extracting reagent is described. Microwave dissolution in closed teflon vessels has been used for the dissolution of biological materials. At least three samples can be decomposed simultaneously with a preset heating programme. Results of analyses of some certified biological reference materials are given.
引用
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页码:41 / 45
页数:5
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