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Reducing Polyatomic Interferences in the ICP-MS Determination of Chromium and Vanadium in Biofluids and Tissues

Volume 52, Number 2 (Feb. 1998) Page 205-211

Krushevska, Antoaneta; Waheed, Shahida; Nobrega, Joaquim; Amarisiriwardena, Dulasiri; Barnes, Ramon M.

The suitability of inductively coupled plasma quadrupole mass spectrometry (ICP-MS) for the determination of Cr and V in biofluids and tissues has been studied. High-pressure thermal and moderatepressure microwave sample preparation with vapor-phase acid digestion successfully minimized blanks and carbon and chloride interferences. The remaining ArC 1 interferences on 52Cr were corrected mathematically. Analysis of standard reference materials verified the accuracy of the method.