Ontario Ministry of the Environment, Conservation and Parks
BIOGRAPHY
JUN 24, 2021 9:50 AM PDT
Trace Analysis of Hexavalent Chromium by Ion Chromatography-Mass Spectrometry
Presented at:
Thermo Fisher Scientific 2021 Global IC Symposium
Speaker
Abstract
A recently developed method for the analysis of Cr(VI) with a direct isotope dilution (DID) quantification approach demonstrated the capability of the IC-MS/MS instrumentation, complementing the traditional ion chromatography separation with inductively coupled plasma mass spectrometry (ICP-MS) approach presented in method EPA 6800. The technique allowed to compensate for any loss of Cr(VI) occurring between collection and analysis time that can affect sample integrity and introduce possible biases in measured concentrations. The DID method achieved trace level analysis with an MDL of 2 ng/L.
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