牛奶中氯霉素残留量测定能力验证结果分析

Proficiency testing results and analysis for determination of chloramphenicol residues in milk

中文关键词:  能力验证  牛奶  氯霉素  残留

英文关键词:proficiency testing  milk  chloramphenicol  residue

中文摘要:

      目的 对牛奶中氯霉素残留量测定的能力验证结果进行分析。方法 按照中国合格评定国家认可委员会规定的方法进行均匀性检验和稳定性检验。以Z比分数作为统计量对参加实验室的检测结果进行评价, 选择全部参加实验室上报结果的中位值作为指定值、标准化四分位距作为能力评定标准差。结果 牛奶中氯霉素残留检测项目能力验证实验室满意率为84.8%, 可疑结果率为0, 不满意率为15.2%。国家级和省级检验机构的满意率相对较高。结论 在本次能力验证中, 大多数实验室均能准确检测牛奶中氯霉素的残留。对不达标机构, 通过本次能力验证查找存在的问题, 可以帮助实验室整改, 进一步提升检验能力。

英文摘要:

      Objective To analyze the proficiency testing results for determination of chloramphenicol residues in milk. Methods The uniformity test and stability test were carried out in accordance with the procedure prescribed by China National Accreditation Service for Conformity Assessment. Z-scores were used as the statistic to evaluate the test results of the participating laboratories. The median value of the results reported by all participating laboratories was selected as the specified value, and the norm interquartile range was used as the standard deviation of ability evaluation. Results The satisfactory rate of the laboratory for verifying the capability of chloramphenicol residue in milk was 84.8%, the suspicious result rate was 0, and the dissatisfaction rate was 15.2%. The satisfactory rate of national and provincial inspection institutions was relatively high. Conclusion In this proficiency test, most laboratories can accurately detect chloramphenicol residues in milk. For substandard institutions, the existing problems can be found through this proficiency test, which can help the laboratory to rectify and further improve the inspection ability.