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Study on the Determination of Trace Lead and Cadmium in Fresh-Keeping Film by ICP-MS

Xiao‐Mei He

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Abstract

Separation by 4% acetic acid extraction, trace Pb and Cd in fresh-keeping membrane was determined by Inductively Coupled Plasma-Mass Spectrometry(ICP-MS). The optimum conditions for the determination was tested and discussed. The inspecting limit of the method were 0.03μg/L(Pb), 0.02μg/L (Cd). The recycling rate ranks from 94.4% to 104.2%. RSD is less than 2.02%. The method is accurate, quick and convenient. It can be used in the determination of trace Lead and Cadmium in fresh-keeping membrane with satisfactory result.

About this research paper

What this paper is about

Separation by 4% acetic acid extraction, trace Pb and Cd in fresh-keeping membrane was determined by Inductively Coupled Plasma-Mass Spectrometry(ICP-MS). The optimum conditions for the determination was tested and discussed. The inspecting limit of the method were 0.03μg/L(Pb), 0.02μg/L (Cd). The recycling rate ranks from 94.4% to 104.2%. RSD is less than 2.02%. The method is accurate, quick and convenient. It can be used in the determination of trace Lead and Cadmium in fresh-keeping membrane with satisfactory result.

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Available abstract

Separation by 4% acetic acid extraction, trace Pb and Cd in fresh-keeping membrane was determined by Inductively Coupled Plasma-Mass Spectrometry(ICP-MS). The optimum conditions for the determination was tested and discussed. The inspecting limit of the method were 0.03μg/L(Pb), 0.02μg/L (Cd). The recycling rate ranks from 94.4% to 104.2%. RSD is less than 2.02%. The method is accurate, quick and convenient. It can be used in the determination of trace Lead and Cadmium in fresh-keeping membrane with satisfactory result.

Key concepts: Cadmium, Inductively coupled plasma mass spectrometry, Chemistry, Extraction (chemistry), TRACE (psycholinguistics), Recovery rate, Detection limit, Chromatography

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