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Bulletin of the Korean Chemical Society (BKCS)

ISSN 0253-2964(Print)
ISSN 1229-5949(Online)
Volume 25, Number 4
BKCSDE 25(4)
April 20, 2004 

A Study of the Potential Interference of ArC+ on the Direct Determination of Trivalent Chromium and Hexavalent Chromium Using Ion Chromatography Coupled with ICP-MS
Sang-Ho Nam*, Young-Il Park, Jae-Jin Kim, Sun-Ho Han, Won-Ho Kim
Chromium species, Ion chromatography, ICP-MS
Low and high resolution inductively coupled plasma mass spectrometry (ICP-MS) coupled with ion chromatography (IC) has been investigated for speciation of Cr(III) and Cr(VI). In particular, the interference of ArC+ formed by the carbon in a sample on the simultaneous determination of Cr(III) and Cr(VI) has been studied. In chemical speciation, this study shows that quadrupole type ICP-MS with low resolution has a limitation of simultaneous determination of chromium species if the sample contains the carbon elements. The interference problems can be solved by high resolution ICP-MS.
447 - 451
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