食品微生物多轮次能力验证方案初探  

A preliminary study on the food microbiological multi-round proficiency testing program

作　　者：刘淑艳[1] 王刚[1] 于珂[1] 殷国建[1] 庞艳华[1] 卢行安[1] 

机构地区：[1]辽宁出入境检验检疫局,辽宁大连116001

出　　处：《中国食品卫生杂志》2012年第1期50-55,共6页Chinese Journal of Food Hygiene

摘　　要：目的探讨微生物多轮次能力验证方案及其在考察参试实验室检测能力的持续满意情况和评价实验室整体检测水平中的作用。方法通过食品微生物两轮次能力验证PTC-T013、9个微生物检测项目、11个检测样品分别进行5项定量检测和6项定性检测来考察参试实验室的检测水平;定量样品采用Z-比分数统计分析,定性样品直接与设定值比较,两轮次结果进行综合比较分析。结果 71.7%实验室取得了满意的结果,虽然两轮不满意的结果数相差不大(5.3%和4.3%),但是第2轮出现不满意结果的实验室数量明显减少(21.7%和8.7%)。结论多轮次能力验证方案为参试实验室提供更多的选择;其结果能更真实地反映出参试单位的持续满意状况及整体检测水平。Objective To investigate the efficacy of a food microbiological multi-round proficiency testing program and to evaluate its role in the comprehensive inspection capabilities of participated laboratories.Methods Two rounds of food microbiological performance testing schemes（PTC-T013） containing 9 test items,11 test samples,5 quantitative analysis and 6 qualitative analysis were conducted to detect the performance of participated laboratories.The results of Z-score statistics and comparing with assigned values were assessed quantitatively and qualitatively.Results Satisfied results were achieved in 71.7% of participants.The overall performance of the laboratories was improved in the second testing round.The unsatisfied laboratories were decreased from 21.7% to 8.7%.Conclusion Food microbiological multi-round proficiency testing could provide more options for participant laboratories.The evaluated results could reflect the continuing performance and the overall detection level of participant laboratories.

关 键 词：食品微生物 多轮次 能力验证 定量检测 定性检测 

分 类 号：TS201.3[轻工技术与工程—食品科学]