检验医学 ›› 2001, Vol. 16 ›› Issue (02): 79-808.

• 生化学检验论著 • 上一篇    下一篇

酶校准品在血清酶测定结果标准化中的应用

苏增留%张克坚%郭健%赵海舰   

  1. 北京医院卫生部临床检验中心,
  • 收稿日期:2001-02-01 出版日期:2001-02-01 发布日期:2001-02-01
  • 通讯作者: 苏增留

Usefulness of calibrators in standardization of enzyme ac ti vities by different analyzer/reagent systems

  • Received:2001-02-01 Online:2001-02-01 Published:2001-02-01

摘要: 目的研究酶校准品用于校准 不同的“仪器/试剂”测定系统 时,能否增加各系统间血清酶测定结果的可比性。方法 在日立7170A和CX9全自动生化分析仪上用4种不同的试剂 分别测 定150份不同浓度分布的新鲜血清中的丙氨酸转氨酶(ALT),天门冬氨酸转氨酶(AST),碱 性 磷酸酶〔(ALP),100份〕,肌酸激酶(CK),γ-谷氨酰转肽酶(GGT),乳酸脱氢酶(LD)等 6种酶的 活性。同1份标本用4种不同的“仪器/试剂”测定系统进行校准前和校准后测定,比较各 测定系统测定前后的均值。结果发现不同的“仪器/试剂”系统间的测定结果存在一定差异(各系统间均值的 CV值≥7.0%,其中ALP为27.0%,GGT为17.4%),用统一的酶校准品校准后,各系 统间测定 结果的差异明显减小(除ALP和GGT的CV值分别为6.6%和5.1%外,其余各项目的CV值均 <5%)。结论统一的某些酶校准品能增 加不同的测定系统间结果的可比性。

关键词: 酶, 校准, 标准 化

Abstract: Objective To study the effects of calibra tors in unifying the results of di fferent analyzer/reagent systems. Methods The ac tivities of ALT, AST, CK,GGT, LD in 150 and ALP in 100 fresh sera were measured by using four an alyzer/reagent systems , and the mean values of different systems were compared between, before and afte r calibration with calibrators. ResultsThe d ifferences among the results of fou r systems were observed before calibration. The coefficient s of variation(CVs) are all more than or cqual to 7.0%,more r emarkably these of ALP and GGT are 27.0%and 17.4%respectively. After calibr ation, the differences a re decreased clearly and the CVs are all lower than 5%except that ALP and GGT are 6.6%and 5.1%respectively. ConclusionEnzym e calibrators could be useful in standardizing the results of different analyzer/reagent systems.

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