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8 - Zhou, Q., Verne, M., Fields, J., Lefante, J., Basra, S., Salameh, H
Wei Wang, [email protected] These authors have contributed equally to this work Disclaimer All claims expressed in this article are solely those of the authors and do not necessarily represent those of their affiliated organizations, or those of the publisher, the editors and the reviewers
10.1371/journal.ppat.1005539 201 NicollM
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Quality control of inductively coupled plasmatriple quadrupole mass spectrometer measurements was ensured through a combination of repeat measurements of: Acid blanks A quality control standard made from 1,000 mg l 1 High-Purity Standards multi-element standard solutions A tenfold dilution of the CRM-TMDW (trace metal drinking water) from High-Purity Standards Analyte measurements were normalized to the internal standard Iridium ( 193 Ir) to account for instrument drift and matrix effects, and measurements were subsequently blank corrected by removing the average analyte intensity of repeat blank measurements
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