抄録
As a method for nutrition labeling, the quantitative analysis of molybdenum in food by inductively coupled plasma atomic
emission spectrometry after dry ashing at 500 °C 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, using
certified reference material (NIST SRM 1849, infant/adult nutritional formula) and commercial natto (fermented soybeans). The
repeatability and intermediate precision of analysis were less than 2.9 and 4.5 % relative standard deviation, respectively, with
HorRatr value 0.24 or less. Recovery tests of molybdenum contents were performed for 13 food samples. Therefore, the recovery
rate of molybdenum ranged from 69 to 111 % indicating the high applicability of the method.
