ICP-MSによる栄養表示のためのモリブデン定量試験 : 単一試験室による妥当性確認

概要

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As a method for nutrition labeling, the quantitative analysis of molybdenum in food by inductively coupled plasma mass spectrometry after dry ashing at 500℃ was studied and validated. Single laboratory validation has been performed to evaluate the trueness, precision, applicability, limit of detection, limit of quantification and linearity of the method. Repeatability and intermediate precision of the method for analysis of molybdenum content in certified reference material (NIST SRM 3280, multivitamin/multielement tablets) were 3.8 and 3.8% relative standard deviation, respectively, with HorRat value 0.5. Recovery tests of molybdenum contents were performed 18 food samples. Consequently, the recovery rate of molybdenum ranged from 71 to 123% indicating the high applicability of the method.
2014-04-25