Study on Pyrolysis Graphite Tube-atomic Absorption Method to Assay the Total Trace Ge in Plant Sample

Abstract

Abstract: Methods developed to assay the total trace germanium in plant samples by Zeeman GFAAS were studied.Whendifferent matrix modifiers were evaluated,palladium nitrate produced the optimum Ge signal.The optimum pyrolysis andatomization temperatures for tin analysis were 1200℃ and 2400℃,respectively.The extraction of total germanium fromsamples was best performed by sample digestion with mixture of HNO3-HClO4 and sample dilution extracts with 1% HNO3.Finally,the germanium analytical and extraction method developed in our investigation was satisfactorially used to determine Gecontent in plant samples.

Key words: germanium, Zeeman GFAAS, plant samples analysis

LIANG Shu-Xuan, SUN Han-Wen, KANG Wei-Jun, HA Jing, SHEN Shi-Gang. Study on Pyrolysis Graphite Tube-atomic Absorption Method to Assay the Total Trace Ge in Plant Sample[J]. FOOD SCIENCE, 2003, 24(5): 130-132.

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Study on Pyrolysis Graphite Tube-atomic Absorption Method to Assay the Total Trace Ge in Plant Sample

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