The legislative requirements and the concern about the harmful effects of pesticide residues have encouraged National Institute of Standards to start development of a series of reference materials for food control to meet requirements of the regulatory authorities, improvement of the comparability and the quality of pesticides analysis and monitoring laboratories overall performance on a reliable, systematic and comparable basis. CRMs play a key role in quality control, precision studies, confirmation and validation of test methods. Comparability and the accuracy of the measurement results depend mainly on availability of certified reference materials appropriate for a particular application. This article gives an overview for complete production process of olive oil matrix reference material certified for organochlorine pesticides. A commercially available virgin olive oil was spiked with 23 pesticides in the range of 4 ng/g, and batch of 300 units was prepared. Characterization, stability, within- and between-samples homogeneity were determined according to ISO standards and guides. The results show that matrix reference material prepared under controlled metrologically valid procedures is valuable tool in the food analysis.

中文翻译：

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用于橄榄油中农药分析质量保证和控制的基质参考材料的制备

立法要求和对农药残留有害影响的关注促使国家标准研究院开始开发一系列食品控制标准物质，以满足监管部门的要求，提高农药分析和分析的可比性和质量。在可靠、系统和可比较的基础上监测实验室的整体性能。CRM 在质量控制、精密度研究、测试方法的确认和验证方面发挥着关键作用。测量结果的可比性和准确性主要取决于适用于特定应用的认证参考材料的可用性。本文概述了有机氯农药认证的橄榄油基质标准物质的完整生产过程。向市售的初榨橄榄油中添加 23 种农药，浓度范围为 4 ng/g，每批次制备 300 个单位。根据 ISO 标准和指南确定表征、稳定性、样品内和样品间的均匀性。结果表明，在受控计量有效程序下制备的基质参比物质是食品分析中的重要工具。