畜牧与饲料科学 ›› 2023, Vol. 44 ›› Issue (5): 100-107.doi: 10.12160/j.issn.1672-5190.2023.05.014

• 食品科学 • 上一篇    下一篇

乳粉中铅、铬、汞、砷含量测定的实验室间比对分析

段建华1,王秀君2,赵静1,李翠枝1,吕志勇1   

  1. 1.内蒙古伊利实业集团股份有限公司,内蒙古 呼和浩特 010110
    2.中农孚德检测技术(北京)有限公司,北京 100000
  • 收稿日期:2023-08-21 出版日期:2023-09-30 发布日期:2023-11-14
  • 通讯作者: 赵静(1981—),女,高级工程师,主要从事实验室质量控制研究工作。
  • 作者简介:段建华(1983—),女,工程师,主要从事实验室质量控制研究工作。
  • 基金资助:
    内蒙古自治区重点研发和成果转化计划项目(2023YFHH0093)

Inter Laboratory Comparison Analysis on the Detection of Lead, Chromium, Mercury and Arsenic Contents in Milk Powder

DUAN Jianhua1,WANG Xiujun2,ZHAO Jing1,LI Cuizhi1,LYU Zhiyong1   

  1. 1. Inner Mongolia Yili Industrial Group Co.,Ltd.,Hohhot 010110,China
    2. Zhongnong Fude Testing Technology(Beijing)Co.,Ltd.,Beijing 100000,China
  • Received:2023-08-21 Online:2023-09-30 Published:2023-11-14

摘要:

[目的]通过开展乳粉中铅、铬、汞、砷含量检测的实验室间比对活动,考查集团化实验室检测能力水平。[方法]以自主研制的乳粉基质铅、铬、汞、砷质量控制样品为试验材料,经过均匀性、稳定性验证,采用稳健(Robust)统计技术的算法A,评价乳粉中铅、铬、汞、砷含量的实验室检测能力。[结果]质量控制样品的均匀性和稳定性检验结果均满足实验室间比对计划要求;乳粉中铅、铬、汞、砷含量检测的满意率分别为98.4%、98.4%、96.7%、95.2%,无不满意结果,参试实验室整体检测能力良好。[结论]通过对乳粉中重金属元素含量检测过程进行技术比对分析,为提升集团化实验室检测技术能力和质量控制水平提供了良好基础。

关键词: 乳粉, 铅, 铬, 汞, 砷, 实验室间比对, 稳健统计方法

Abstract:

[Objective] This study aimed to evaluate the detection capability of the group laboratories by conducting an inter laboratory comparison analysis on the detection of lead, chromium, mercury, and arsenic contents in milk powder. [Method] Using the self-developed quality control samples of milk powder matrix containing lead, chromium, mercury, and arsenic as the experimental materials, following uniformity and stability verification, the laboratory detection capability of lead, chromium, mercury, and arsenic contents in milk powder were evaluated using Robust statistical method algorithm A. [Result] The uniformity and stability test results of the quality control samples met the requirements of the inter laboratory comparison plan. The satisfaction rates for the detection of lead, chromium, mercury, and arsenic contents in milk powder were 98.4%, 98.4%, 96.7%, and 95.2%, respectively. There were no unsatisfactory results, and the overall detection capability of the participating laboratories was good. [Conclusion] By conducting technical comparison analysis on the detection of heavy metal element contents in milk powder, a solid foundation has been laid for improving the detection capability and quality control level of the group laboratories.

Key words: milk powder, lead, chromium, mercury, arsenic, inter laboratory comparison, Robust statistical method

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