检验医学 ›› 2017, Vol. 32 ›› Issue (10): 844-848.DOI: 10.3969/j.issn.1673-8640.2017.010.002

• 临床应用研究·论著 • 上一篇    下一篇

室内CO2体积分数对CO2酶法试剂盒稳定性的影响

梁健伟1, 穆思聪2, 周玮1, 李万莎1, 李健1, 张竞1, 陈熙1, 陈薪羽3, 闪全忠1   

  1. 1.清华大学第一附属医院检验科,北京 100016
    2.清华大学第一附属医院药学部,北京 100016
    3.河北北方学院,河北 张家口 075000
  • 收稿日期:2016-12-10 出版日期:2017-10-20 发布日期:2017-11-20
  • 作者简介:null

    作者简介:梁健伟,男,1986年生,学士,技师,主要从事临床生化及免疫学检验工作。

    通信作者:闪全忠,联系电话:010-64308327。

Influence of indoor CO2 concentration on the stability of CO2 reagents by enzymatic method

LIANG Jianwei1, MU Sicong2, ZHOU Wei1, LI Wansha1, LI Jian1, ZHANG Jing1, CHEN Xi1, CHEN Xinyu3, SHAN Quanzhong1   

  1. 1. Department of Clinical Laboratory,the First Hospital of Tsinghua University,Beijing 100016,China
    2. Pharmacy Department,the First Hospital of Tsinghua University,Beijing 100016,China
    3. Hebei North University,Zhangjiakou 075000,Hebei,China
  • Received:2016-12-10 Online:2017-10-20 Published:2017-11-20

摘要:

目的 探讨室内二氧化碳(CO2)体积分数对CO2酶法试剂盒稳定性的影响。方法 选用2个CO2酶法试剂盒,采用2种方法进行试验:(1)试剂盒1在每天试验完成后封口置4 ℃冰箱保存;(2)试剂盒2模拟正常工作状态,持续敞口放置于仪器试剂仓(4 ℃)内直至全部试验完成。使用高值质控品、低值质控品、混合血清3种样本,分别在不同时间点使用2个试剂盒测定CO2水平,同时测定室内CO2体积分数,观察CO2酶法试剂盒测定结果随室内CO2体积分数变化的情况。3种样本的检测结果与室内CO2体积分数的相关性采用Pearson相关分析。结果 随着试剂盒装载时间的延长,使用2种试验方法测定高、低值质控品及混合血清CO2结果的变化趋势与室内CO2体积分数相同。相关性分析显示,高、低值质控品及混合血清使用2种试验方法测得的CO2结果均与室内CO2体积分数高度相关[试剂盒1(方法1):r值分别为0.722、0.853、0.790,P<0.01;试剂盒2(方法2):r值分别为0.689、0.875、0.801,P<0.01],与试剂盒装载时间均无相关性[试剂盒1(方法1):r值分别为-0.132、-0.108、-0.103,P>0.05;试剂盒2(方法2):r值分别为-0.124、-0.112、-0.111,P>0.05]。结论 CO2酶法试剂盒稳定性受室内CO2体积分数影响较大,实验室可通过换用封口试剂或通过减少人口密度、加大换气频率等方式避免室内CO2体积分数产生较大波动,保证CO2酶法检测结果的准确性。

关键词: 二氧化碳, 血清, 稳定性

Abstract:

Objective To study the influence of indoor carbon dioxide(CO2) concentration on the stability of CO2 reagents by enzymatic method. Methods A total of 2 CO2 reagents by enzymatic method were used and treated by 2 ways. Reagent 1 was sealed at 4 ℃ in refrigerator after daily work finished. Reagent 2 was continuously left in instrument reagent positions and exposed to air until the end of experiment,which was simulating normal working state. The 2 reagents were used to determine the CO2 levels in 3 samples of high-value quality control material,low-value quality control material and mixed serum at different time points,and indoor CO2 concentration was determined to observe the change of the determination results of 2 reagents by enzymatic method with indoor CO2 concentration changing. Pearson correlation analysis was used to analyze the correlation between the determination results of 3 samples and indoor CO2concentration. Results The CO2 levels of 3 samples determined by the 2 reagents showed the same trend as indoor CO2 concentration with the increasing of reagent loading time. Correlation analysis showed that the determination results of 3 samples were correlated with indoor CO2 concentration(Reagent 1:r=0.722,0.853 and 0.790,P<0.01;Reagent 2:0.689,0.875 and 0.801,P<0.01). There was no correlation between indoor CO2 concentration and reagent loading time(Reagent 1:r=-0.132,-0.108 and -0.103,P>0.05;Reagent 2:-0.124,-0.112 and -0.111,P>0.05). Conclusions The stability of CO2 reagents by enzymatic method is influenced by indoor CO2 concentration. The accuracy of CO2 reagents by enzymatic method can be ensured by using sealed reagent,reducing population density or increasing ventilation frequency.

Key words: Carbon dioxide, Serum, Stability

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