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Determination of Trace Elements in Water Chestnut by Microwave Digestion-FAAS

Zhan Yi-fei

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Abstract

Water chestnut was digested by microwave digestion before determination,and the six trace elements of Fe,Cu,Zn,Mn,Ca,Mg in water chestnut were determined by microwave FAAS.The samples were digested with nitric acid and the conditions of digestion were optimized.The effect of different microwave digestion conditions on the analysis results was investigated,and the optimal condition for atomic absorption spectrophotometry was used.The contents of six trace elements of Fe,Cu,Zn,Mn,Ca,Mg in water chestnut were 23.282,0.103,0.958,5.879,67.786,10.382 μg/g.The recovery of this method was between 93.05% and 104.75%.

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What this paper is about

Water chestnut was digested by microwave digestion before determination,and the six trace elements of Fe,Cu,Zn,Mn,Ca,Mg in water chestnut were determined by microwave FAAS.The samples were digested with nitric acid and the conditions of digestion were optimized.The effect of different microwave digestion conditions on the analysis results was investigated,and the optimal condition for atomic absorption spectrophotometry was used.The contents of six trace elements of Fe,Cu,Zn,Mn,Ca,Mg in water chestnut were 23.282,0.103,0.958,5.879,67.786,10.382 μg/g.The recovery of this method was between 93.05% and 104.75%.

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Available abstract

Water chestnut was digested by microwave digestion before determination,and the six trace elements of Fe,Cu,Zn,Mn,Ca,Mg in water chestnut were determined by microwave FAAS.The samples were digested with nitric acid and the conditions of digestion were optimized.The effect of different microwave digestion conditions on the analysis results was investigated,and the optimal condition for atomic absorption spectrophotometry was used.The contents of six trace elements of Fe,Cu,Zn,Mn,Ca,Mg in water chestnut were 23.282,0.103,0.958,5.879,67.786,10.382 μg/g.The recovery of this method was between 93.05% and 104.75%.

Key concepts: Microwave digestion, Nitric acid, Digestion (alchemy), Chemistry, Atomic absorption spectroscopy, Microwave, Chromatography, Trace element

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