Heavy Metals Meeting Book_MYM2023

ICP-MS – Technical challenges – Analysis 1/2

Qual ity of blanks

Need to use highly distilled acids and ultrapure water to avoid any contamination

Carbon ef fect

Need to use carbon buffer to compensate potential signal enhancement (mainly for As)

Interna l standards

Need to choose carefully appropriate internal standards

Cal ibrat ion standards

Matrix matched calibration standards

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2023.03.17

AOAC MidYear Meeting - S . Dubascoux