中国检验检疫科学研究院,北京 100176
彭涛,博士,研究员,研究方向:兽药残留分析/食品安全研究,E - mail:caiq_pengtao@126.com
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董静,杨昭颖,余丽波等.食品接触材料中高锰酸钾消耗量检测能力验证实施及应用评价[J].分析测试学报,2022,41(10):1501-1507.
DONG Jing,YANG Zhao-ying,YU Li-bo,et al.Proficiency Testing of Potassium Permanganate Consumption in Food Contact Materials and Its Application Assessment[J].Journal of Instrumental Analysis,2022,41(10):1501-1507.
董静,杨昭颖,余丽波等.食品接触材料中高锰酸钾消耗量检测能力验证实施及应用评价[J].分析测试学报,2022,41(10):1501-1507. DOI: 10.19969/j.fxcsxb.22052703.
DONG Jing,YANG Zhao-ying,YU Li-bo,et al.Proficiency Testing of Potassium Permanganate Consumption in Food Contact Materials and Its Application Assessment[J].Journal of Instrumental Analysis,2022,41(10):1501-1507. DOI: 10.19969/j.fxcsxb.22052703.
面对日趋完善的食品接触材料卫生标准体系,为掌握高锰酸钾消耗量测定的技术要求,做好相应合规性判定,充分发挥能力验证对检验检测机构技术能力监督和质量提升的作用,该文进行了食品接触用塑料材料及制品中高锰酸钾消耗量的测定能力验证。通过定制棕色塑料食品包装瓶作为相关能力验证样品,依据相关标准要求进行均匀性、稳定性评价,对回收结果采用稳健统计技术算法A确定指定值和能力评定标准差,并对可能产生不满意结果的影响因素进行了分析。192家参与该项能力验证的实验室中有179家结果为满意,满意率为93.2%;12家实验室结果为不满意,占6.3%;1家实验室结果为可疑,占0.5%。总体结果较好,个别实验室出现的不合格结果可通过本次能力验证分析查找原因,达到提高实验室相应检测能力的目的。
Faced with the increasingly perfect health standard system for food contact materials,this paper has implemented the proficiency testing(PT) for the determination of potassium permanganate consumption in food contact plastic materials,in order to master the technical requirements for the determination of potassium permanganate consumption,conducting the corresponding compliance judgments and giving full play to the role of proficiency testing for technical ability supervision and quality improvement of inspection and testing institutions.The brown plastic packaging bottles used in food were customized as relevant proficiency testing samples.The homogeneity and stability were evaluated according to the requirements of relevant standards,and robust statistical techniques were used for the collected results.The assigned value and the standard deviation of the performance assessment were determined by Algorithm A,and the influencing factors that may lead to unsatisfactory results were analyzed.There are 192 participating laboratories in this proficiency test,of which 179 obtained satisfactory results,with a satisfaction rate of 93.2%,and 12 laboratories got unsatisfactory results,accounting for 6.3%,and 1 laboratory got suspicious results,accounting for 0.5%.This proficiency testing activity contributed to PT provider a certain understanding of the testing level of laboratories in this field.The overall results presented by the laboratories were satifactory,while the reason for unqualified results of individual laboratories could be analyzed through this proficiency testing so as to achieve the purpose of improving the detection capability.
食品接触材料高锰酸钾消耗量能力验证统计分析
food contact materialspotassium permanganate consumptionproficiency testingstatistic analysis
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