Otake Takamitsu, Yarita Takashi
National Metrology Institute of Japan (NMIJ), National Institute of Advanced Industrial Science and Technology (AIST), 1-1-1 Umezono, Tsukuba, Ibaraki 305-8563, Japan.
College of Agriculture, Ibaraki University, 3-21-1 Chuo, Ami, Inashiki, Ibaraki 300-0321, Japan.
J Pestic Sci. 2021 Aug 20;46(3):297-303. doi: 10.1584/jpestics.J21-03.
Matrix certified reference materials (CRMs) and proficiency testings (PTs) are effective for evaluation of the quality of analytical results. The National Metrology Institute of Japan has developed five kinds of CRMs and has provided eight PTs so far for the quantification of pesticide residues in foods. Target pesticides were sprayed on growing crops, and the harvests were used for the preparation of CRMs and PT samples. In most cases, multiple analytical methods based on isotope dilution mass spectrometry were used to ensure the reliability of certified values (for CRMs) and reference values (for PT samples). These activities were carried out with corresponding to the international standards such as ISO 17034 and ISO/IEC 17043. An overview of the development of CRMs and the implementation of PTs is described, with some examples.
基质有证标准物质（CRMs）和能力验证（PTs）对于评估分析结果的质量是有效的。日本国家计量院已研制出五种CRMs，并且迄今为止已提供了八项PTs用于食品中农药残留的定量分析。目标农药喷洒在生长中的作物上，收获物用于制备CRMs和PT样品。在大多数情况下，基于同位素稀释质谱法的多种分析方法被用于确保（CRMs的）认定值和（PT样品的）参考值的可靠性。这些活动是按照诸如ISO 17034和ISO/IEC 17043等国际标准开展的。本文通过一些实例描述了CRMs的研制和PTs的实施概况。
