检验医学 ›› 2019, Vol. 34 ›› Issue (4): 355-359.DOI: 10.3969/j.issn.1673-8640.2019.04.015

• 技术研究与评价·论著 • 上一篇    下一篇

DGKC手工法评价3种血清胆碱酯酶试剂盒的检测性能

欧元祝, 唐立萍(), 虞啸炫, 刘文彬   

  1. 上海市临床检验中心生化室,上海 200126
  • 收稿日期:2018-05-11 出版日期:2019-04-30 发布日期:2019-05-17
  • 作者简介:null

    作者简介:欧元祝,女,1975年生,硕士,副主任技师,主要从事临床生化检测标准化工作。

  • 基金资助:
    上海市卫生和计划生育委员会资助项目(20134301);上海市第四轮公共卫生三年行动计划重点学科建设卫生检验学(15GWZK0301)

Performance evaluation of 3 kinds of serum cholinesterase determination kits by manual DGKC method

OU Yuanzhu, TANG Liping(), YU Xiaoxuan, LIU Wenbin   

  1. Department of Biochemistry,Shanghai Center for Clinical Laboratory,Shanghai 200126,China
  • Received:2018-05-11 Online:2019-04-30 Published:2019-05-17

摘要:

目的 采用德国临床化学协会(DGKC)推荐的血清胆碱酯酶(CHE)手工检测方法(简称DGKC手工法)评价3种相同原理的CHE商品化试剂盒的检测性能。方法 采用DGKC手工法评价3种CHE试剂的不精密度、线性范围及与DGKC手工法的相关性和可比性。结果 3种试剂与DGKC手工法均有良好的相关性(r2值均为0.999)和可比性[3种试剂CHE参考区间上、下限检测结果与DGKC手工法检测结果的相对偏移均<1/2允许总误差(TEa)(7.5%)]。3种试剂和DGKC手工法的重复精密度均<1%、实验室内精密度均≤1.5%。以相对偏移<7.5%为判断标准,DGKC手工法及3种试剂的线性范围分别为417~26 363、1 605~17 609、788~30 853、839~25 767 U/L。3种试剂的线性范围下限均未达到DGKC手工法的线性范围下限,线性范围上限均已超出厂家声明的线性范围上限。结论 3种常用的血清CHE试剂检测性能良好,无明显基质效应,均能满足临床检测的需要。

关键词: 胆碱酯酶, 德国临床化学协会, 手工法, 性能评价

Abstract:

Objective To evaluate the performance of 3 kinds of commercial serum cholinesterase(CHE) determination kits by manual method recommended by German Clinical Chemical Association(Deutsche Gesellschaft für Klimische Chemie,DGKC). Methods Through manual DGKC method,the performance of the 3 kinds of serum CHE determination kits,including the correlation with manual DGKC method,comparability,imprecision and linear range,was evaluated. Results There was a good correlation of the 3 determination kits with manual DGKC method(r2=0.999),and the relative deviation between the upper and lower limits of CHE reference intervals of the 3 determination kits and manual DGKC method was <1/2 allowable total error (TEa)(7.5%). The repeatabilities were all <1%,and within-laboratory precisions were all ≤1.5%. Using relative bias <7.5% as standard,the linear ranges of manual DGKC method and the 3 determination kits were 417-26 363,1 605-17 609,788-30 853 and 839-25 767 U/L,respectively. The lower limit of the 3 determination kits were higher than that of manual DGKC method. The upper limit of linear range had exceeded the upper limit of linear range declared by the manufacturer. Conclusions The 3 kinds of serum CHE determination kits have good determination performance without matrix effect,which may meet the needs of clinical determination.

Key words: Cholinesterase, German Clinical Chemical Association, Manual method, Performance evaluation

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