ICP-MS Determination of Trace Elements in American Ginseng

doi:10.7506/spkx1002-6630-201310045

Abstract

Abstract:

An inductively coupled plasma mass spectrometry (ICP-MS) method based on octopole reaction system
(ORS) was developed for the determination of B, Ti, V, Cr, Mn, Fe, Co, Ni, Cu, Zn, As, Mo, Cd, Sn, Sb, Ba, Hg and Pb in
American ginseng. Samples were digested with HNO3 and H2O2 followed by dilution with ultrapure water and were then
analyzed directly by ICP-MS. The interferences from polyatomic ions were eliminated by using ORS. An internal standard
mixuture of Sc, Y, In and Bi was used to correct the matrix interference and drift. The limits of detection for the 18 elements
varied from 0.002 to 0.323 μg/L,and accurate and reliable results were obtained for validation of the ICP-MS method with
ginseng reference material according to the national standard GB W 10027. This method was rapid, simple and feasible for
the analysis of trace elements in American ginseng.

Key words: inductively coupled plasma mass spectrometry (ICP-MS), octopole reaction system (ORS), American ginseng, trace elements

CLC Number:

O657.63

ZHOU Xue-zhong，XIE Hua-lin. ICP-MS Determination of Trace Elements in American Ginseng[J]. FOOD SCIENCE, 2013, 34(10): 207-210.

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