MICROWAVE DIGESTION METHODS FOR THE ATOMIC SPECTROMETRIC DETERMINATION OF SOME ELEMENTS IN BIOLOGICAL SAMPLES

被引：50

作者：

MINGORANCE, MD ^{[1
]}

PEREZVAZQUEZ, ML ^{[1
]}

LACHICA, M ^{[1
]}

机构：

[1] CSIC,DEPT APPL ANALYT CHEM,ESTAC EXPTL ZAIDIN,PROF ALBAREDA 1,E-18008 GRANADA,SPAIN

来源：

JOURNAL OF ANALYTICAL ATOMIC SPECTROMETRY | 1993年 / 8卷 / 06期

关键词：

MICROWAVE DIGESTION; ATOMIC ABSORPTION SPECTROMETRY; INDUCTIVELY COUPLED PLASMA ATOMIC EMISSION SPECTROMETRY; PLANT MATERIAL AND MILK PRODUCTS; TRACE ELEMENTS;

D O I：

10.1039/ja9930800853

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

Four closed microwave-based digestion procedures have been tested on biological samples for application in the determination of P, B, Cu, Fe, Mn, Zn, Cd and Pb by inductively coupled plasma atomic emission spectrometry, flame atomic absorption spectrometry or electrothermal atomic absorption spectrometry. The proposed methods involve either wet oxidation with nitric acid alone or in combination with HF, H2O2 or HClO4. Their accuracy was assessed by analysis of Standard and Certified Reference Materials or by comparison with results from conventional digestion procedures. The results provide quantitative recoveries for most elements and the precision ranged from +/- 3 to +/- 15% relative standard deviation indicating that the methods employed were well suited for the sample types investigated.

引用

页码：853 / 858

页数：6

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