RT-1904 C生化分析仪检测ALT的精密度评价

目的：监测和评价RT-1904 C半自动生化分析仪检测ALT的质量。方法根据NCCLS的EP5-T2文件《临床化学设备操作精密度评价(核准指南)》，对该仪器速率法检测ALT进行了精密度评价。选用两个ALT浓度具有医学决定水平的冷冻人混合血清作为实验标本，每天分上下午两批测定，每个标本重复测定2次，连续操作20d，按附表记录实验结果。结果：ALT浓度在300和60U／L附近的批内不精密度分别是2．25和2．17，总不精密度分别是6．33和5．50。结论：RT-1904 C生化分析仪精密度良好，符合技术规范要求。

Evaluation on the precision of RT-1904C chemistry analyzer in detecting ALT

Objective] To supervise and evaluate the quality of RT-1904C chemistry analyzer in detecting ALT. Methods] Evaluation on the precision of RT-1904C chemistry analyzer in detecting ALT was made according to EP 5-T2 document "Standard Guidance for Precision Evaluation on Clinical Chemistry Equipment Operation". Two frozen human serum mixtures were taken as experimental specimens. Detection was made 2 times a day on each specimen for 20 days. The experimental results were carefully recorded. Results] The imprecision level was 2.25 and 2.17 under the ALT concentration of 300 and 60 U/L respectively. The total imprecision were 6.33 and 5.50 respectively. Conclusion] The RT-1904C chemistry analyzer has a fine precision and meets the technical requirement.