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Updated: May 15, 2026

Preparation of Food Samples Using Homogenization and Microwave-Assisted Wet Acid Digestion for Multi-Element Determination with ICP-MS
Published on: December 22, 2023
[Determination of impurity elements in edible phosphate by ICP-MS]
1College of Material and Chemical Engineering, Hunan Institute of Technology, Hengyang 421002, China. ltp.998@163.com
Abstract:
An octopole reaction system (ORS) inductively coupled plasma mass spectrometry (ICP-MS) was developed for the determination of Mg, Ti, V, Cr, Fe, Co, Ni, Cu, Zn, As, Cd and Pb in edible phosphate. The sample was digested by HNO3 followed by dilution with ultrapure water, then the above 12 impurity elements in the solution were analyzed directly by ICP-MS The use of ORS can eliminate the interference of polyatomic ions dramatically. Sc, Y, In and Bi were used to correct the matrix interference and drift. The detection limits of the 12 elements are in the range of 0.004-0.362 microg x L(-1). This method is rapid, simple and applicable for the analysis of trace elements in edible phosphate.
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