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Direct Determination of Lead and Cadmium in Edible Fungi by FAAS

Wenxiu Fan

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Abstract

A method for direct determination of Pb and Cd in edible fungi by flame atomic absorption spectrometry (FAAS) has been developed with high sensitivity and fine accuracy.The preconcentration and extraction are not necessary for the determination,so the method is rapid and easy to operate.The relative standard deviation of Pb and Cd are 3.3%～7.3% and 3.1%～7.5%,the recovery of Pb and Cd are 94%～106% and 95%～105%,the detection limit of Pb and Cd are 0.016 mg/L and0.008 mg/L.

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What this paper is about

A method for direct determination of Pb and Cd in edible fungi by flame atomic absorption spectrometry (FAAS) has been developed with high sensitivity and fine accuracy.The preconcentration and extraction are not necessary for the determination,so the method is rapid and easy to operate.The relative standard deviation of Pb and Cd are 3.3%～7.3% and 3.1%～7.5%,the recovery of Pb and Cd are 94%～106% and 95%～105%,the detection limit of Pb and Cd are 0.016 mg/L and0.008 mg/L.

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Available abstract

A method for direct determination of Pb and Cd in edible fungi by flame atomic absorption spectrometry (FAAS) has been developed with high sensitivity and fine accuracy.The preconcentration and extraction are not necessary for the determination,so the method is rapid and easy to operate.The relative standard deviation of Pb and Cd are 3.3%～7.3% and 3.1%～7.5%,the recovery of Pb and Cd are 94%～106% and 95%～105%,the detection limit of Pb and Cd are 0.016 mg/L and0.008 mg/L.

Key concepts: Detection limit, Relative standard deviation, Cadmium, Chemistry, Extraction (chemistry), Atomic absorption spectroscopy, Chromatography, Environmental chemistry

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