BECKMAN COULTER 4C Plus细胞质控品的稳定性探讨

目的 探讨BECKMAN COULTER 4C Plus细胞质控品开盖后的稳定性,以便更经济正确地使用该质控品。方法 每月采用BECKMAN COULTER MD Ⅱ 三分群血细胞分析仪对三个不同水平的4C Plus细胞质控品进行测定,每支开盖后测定4周到5周。结果 BECKMAN COULTER 4C Plus细胞质控品开盖两周前后各参数的绝大多数结果在统计学上无差异(P>0.05),尽管个别参数结果于开盖两周前后有差异(P<0.05),但这些参数95％的结果都在靶值的一个标准差范围内。IQAP回报的结果中只有淋巴细胞百分比略低于组值,其它参数结果均与组值接近且精度良好。结论 注意质控品的贮存、预热和混匀,BECKMAN COULTER 4C Plus细胞质控品开盖4周到5周内结果可保持稳定。

A study of stability of BECKMAN COULTER 4C Plus Cell Controls after opening vials.

Objective To investigate the stability of BECKMAN COULTER 4C Plus Cell Controls after opening vials. Methods BECKMAN COULTER 4C Plus Cell Controls of three different levels were run in each month. Each vial was run for four to five weeks after being opened. Results In most results, there were no differences (P> 0.05) between two weeks ago and two weeks later. Although a few parameters after two weeks were different to(P<0.05) those before two weeks, 95% parameters were within IS ranges of the assays. Only the percentage of lymphocyte was lower than that of the pool. The other results were near to the pool results and had good precision. Conclusions When stored correctly, wanned enough and mixed thoroughly, BECKMAN COULTER 4C Plus Cell Controls are stable within four weeks to five weeks after opening vials.