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目的 研究丙氨酸氨基转移酶参考品活性浓度的定值。方法 用IFCC推荐的方法测定该酶活性浓度,从9个厂家生产的试剂盒中选择3种,首先进行实际K值的测定,然后对该参考品定值。结果 瓶间变异CV小于1.0％。丙氨酸氨基转移酶的催化浓度以95％可信限赋值,复溶的冻干参考品为201±4.9U/L。结论 该定值对于本品的试用和认证是有价值的。
Objective To study the value of the active concentration of alanine aminotransferase reference. Methods The activity of this enzyme was determined by the method recommended by IFCC. Three of the kits produced by the nine manufacturers were selected. The actual K value was determined first, and then the reference value was determined. Results CV between CVs was less than 1.0%. The catalytic concentration of alanine aminotransferase was assigned a 95% confidence limit and the reconstituted lyophilized reference was 201 ± 4.9 U / L. Conclusion The value of the trial and certification of the product is valuable.