Determination of Copper Ion in Chitosan Membrane by Microwave Digestion and Graphite Furnace Atomic Absorption Spectrophotometry

doi:10.7506/spkx1002-6630-201502039

Abstract

Abstract:

Objective: To establish a method for the determination of copper ion in chitosan membrane by microwave
digestion and graphite furnace atomic absorption spectrophotometry. Method: The chitosan membrane was dissolved by
microwave digestion before analysis by graphite furnace atomic absorption spectrophotometry at a wavelength of 327.4 nm.
Result: This method had good linearity with a correlation coefficient (r2) of 0.999 3, and the limit of detection (LOD) was
0.096 μg/g. Recoveries from spiked samples ranged from 72.78% to 90.91%. Conclusions: This method is rapid, simple,
accurate pollution-free and suitable for the determination of copper in chitosan membrane.

Key words: microwave digestion, graphite furnace atomic absorption spectrophotometry (GFAAS), chitosan membrane, copper ion

CLC Number:

TS207.3

YU Gang1, QIN Peng1,2, CHEN Pimao1, QIN Chuanxin1, YANG Xianqing1. Determination of Copper Ion in Chitosan Membrane by Microwave Digestion and Graphite Furnace Atomic Absorption Spectrophotometry[J]. FOOD SCIENCE, doi: 10.7506/spkx1002-6630-201502039.

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Determination of Copper Ion in Chitosan Membrane by Microwave Digestion and Graphite Furnace Atomic Absorption Spectrophotometry

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