| 气相色谱法测定工作场所空气中四氢呋喃的不确定度分析 |
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| 引用本文： | 任真,沈菊芳,张晶,陈静,房新宇,汪丽萍.气相色谱法测定工作场所空气中四氢呋喃的不确定度分析[J].上海预防医学,2013,25(5):256-259. |
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| 作者姓名： | 任真 沈菊芳 张晶 陈静 房新宇 汪丽萍 |
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| 作者单位： | 任真 (上海市杨浦区疾病预防控制中心,上海,200090)； 沈菊芳 (上海市杨浦区疾病预防控制中心,上海,200090)； 张晶 (上海市杨浦区疾病预防控制中心,上海,200090)；陈静 (上海市杨浦区疾病预防控制中心,上海,200090)； 房新宇 (上海市杨浦区疾病预防控制中心,上海,200090)；汪丽萍 (上海市杨浦区疾病预防控制中心,上海,200090)； |
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| 摘 要： | 目的]分析气相色谱法测定工作场所空气中四氢呋喃的不确定度,找出测定过程中的关键环节,保证实验室数据的准确性和可靠性。方法]通过不确定度分析,找出产生不确定度的主要来源。结果]四氢呋喃测定的扩展不确定度为5.4 mg/m3(k=2)。结论]气相色谱法测定工作场所空气中四氢呋喃的过程中,采样体积、标准溶液配制、工作曲线绘制、重复性测定是影响结果可靠性的重要环节。
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| 关 键 词： | 气相色谱法 四氢呋喃 不确定度 |
Uncertainty anaysis on determination of tetrahydrofuran in workplace air by gas chromatography |
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| REN Zhen,SHEN Ju-fang,ZHANG Jing,CHEN Jing,FANG Xin-yu,WANG Li-ping.Uncertainty anaysis on determination of tetrahydrofuran in workplace air by gas chromatography[J].Shanghai Journal of Preventive Medicine,2013,25(5):256-259. |
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| Authors: | REN Zhen SHEN Ju-fang ZHANG Jing CHEN Jing FANG Xin-yu WANG Li-ping |
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| Institution: | (Shanghai Yangpu Center for Disease Control and Prevention, Shanghai 200090, China } |
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| Abstract: | Objective ] To evaluate uncertainty for determination of tetrahydrofuran in workplace air by Gas Chromatography （ GC ） , identify the key factors in the determination process and ensure the accu- racy and reliability of laboratory data. Methods] The major source of uncertainty was identified by un- certainty analysis. Results ] The extended uncertainty for determination of tetrahydrofuran was 5.4 mg/m3 （ k = 2 ）. Conclusion ] Sampling volume, dilution of standards, standard curve, and replicates are key factors for assuring reliability in the determination of tetrahydrofuran by GC. |
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| Keywords: | Gas Chromatography Tetrahydrofuran Uncertainty |
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