集团实验室开展内部能力验证活动的实践与探讨

Practice and discussion of the internal ability verification activities in group laboratory

目的通过实验室内部能力验证工作的开展对实验室进行质量控制(内部能力验证),来验证实验室的检测能力、检测人员的操作技术水平和仪器设备的运行状态。方法检测方法用GB/T 4789.2-2010《食品微生物学检验菌落总数测定》对合成乳粉进行定量检测分析。结果依据GB/T15483.1-1999《利用实验室问比对的能力验证。第1部分:能力验证计划的建立和运用》,用Z比分数对被考核实验室的检测结果作出评价和分析。此次内部能力验证共有20个实验室参加,分析检测数据20个,检测数据的满意率为75%。结论通过对各个实验室开展内部能力验证,有助于发现实验室检测分析中存在的问题及检测结果的不合格项,从而找出检测结果离群的各种原因,依照能力验证纠正措施,有效地进行纠偏。

Objective Laboratory quality control (internal ability validation) were carried out through internal ability verification activities, to verify laboratory detection capability, operation level of technicians, and equipment operating status. Methods Methods in GB/T 4789.2 2010 were used to for quantitative detection analysis of synthetic milk. Results The satisfaction rate, analyzed using Z score for laboratory test according to GB/T15483.1-1999 Part 1, was 75% of the verified 20 laboratories. Con-clusion The internal ability verification activities help to find out the problems existing in laboratory test analysis and unqualified test results, and thus to identify outliers for various reasons, which eventually contribute to effectively correcting according to corrective action measures.