Proficiency tests for analysis of pesticide residues in kimchi cabbage and ginseng in South Korea from 2008 to 2020

IF 0.8 4区工程技术 Q4 CHEMISTRY, ANALYTICAL

Accreditation and Quality Assurance Pub Date : 2024-06-17 DOI:10.1007/s00769-024-01605-x

Seonghee Ahn, Byungjoo Kim

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引用次数: 0

Abstract

From 2008 to 2020, the Ministry of Food and Drug Safety (MFDS) and the Korea Research Institute of Standards and Science (KRISS) jointly conducted a proficiency testing (PT) program for the analysis of pesticide residues in kimchi cabbage and ginseng powder. This collaborative effort marked a significant milestone in South Korea, being the first instance of employing metrologically traceable assigned values, determined via isotope dilution mass spectrometry (IDMS), in PT programs. The focus was on a selective range of pesticides, including diazinon, chlorpyrifos, p,p’-DDE, γ-HCH (lindane), α-endosulfan, and β-endosulfan. Each biennial PT program centered on two of these pesticides with participating laboratories reporting their mass fractions in provided samples. PT samples were prepared meticulously prepared in powder form by KRISS, ensuring homogeneity and stability, integral for the accuracy of the testing. The paper elaborates on the intricate processes involved in PT sample preparation and the rigorous assignment of values. To evaluate laboratory proficiency, the Horwitz equation was utilized as a general mode to set for standard deviations in proficiency assessment. An in-depth review of seven PT programs conducted over this period demonstrates the significant role these programs played in advancing the measurement competencies of laboratories, underscoring the novelty and impact of this long-term collaborative effort.

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2008 至 2020 年韩国泡菜卷心菜和人参中农药残留分析的能力测试

从 2008 年到 2020 年，韩国食品药品安全部（MFDS）和韩国标准与科学研究院（KRISS）联合开展了一项能力验证计划（PT），用于分析泡菜卷心菜和人参粉中的农药残留。这项合作在韩国具有重要的里程碑意义，它是首次在能力验证计划中采用同位素稀释质谱法（IDMS）确定的可计量溯源的分配值。该计划的重点是一系列选择性农药，包括二嗪农、毒死蜱、p,p'-DDE、γ-HCH（林丹）、α-硫丹和β-硫丹。每两年一次的 PT 计划都以其中的两种农药为中心，由参与实验室报告其在所提供样品中的质量分数。PT 样品由 KRISS 以粉末形式精心制备，以确保样品的均匀性和稳定性，这也是确保检测准确性不可或缺的一部分。论文详细阐述了 PT 样品制备和严格赋值的复杂过程。为了评估实验室能力，霍维茨方程被用作能力评估中设定标准偏差的一般模式。对这一时期开展的七项能力验证计划进行的深入回顾表明，这些计划在提高实验室测量能力方面发挥了重要作用，突出了这一长期合作努力的新颖性和影响力。

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来源期刊

Accreditation and Quality Assurance 工程技术-分析化学

CiteScore

1.80

自引率

22.20%

发文量

审稿时长

6-12 weeks

期刊介绍： Accreditation and Quality Assurance has established itself as the leading information and discussion forum for all aspects relevant to quality, transparency and reliability of measurement results in chemical and biological sciences. The journal serves the information needs of researchers, practitioners and decision makers dealing with quality assurance and quality management, including the development and application of metrological principles and concepts such as traceability or measurement uncertainty in the following fields: environment, nutrition, consumer protection, geology, metallurgy, pharmacy, forensics, clinical chemistry and laboratory medicine, and microbiology.