气相色谱法分析胶粘剂中苯测量不确定度的评定  

Analysis of the uncertainty for the determination of benzene in adhesives by gas chromatography

作　　者：鞠福龙[1] 王文佳[1] 马利[1] 吴凡[1] 

机构地区：[1]黑龙江省质量监督检测研究院,黑龙江哈尔滨150050

出　　处：《化学工程师》2010年第3期28-30,53,共4页Chemical Engineer

摘　　要：本文利用气相色谱法对胶粘剂中苯进行了测定,当苯含量为0.32%时,扩展不确定度U=0.01%,(K=2)。同时从标准溶液配制、稀释过程、标准工作曲线拟合、样品称量、样品定容、峰面积测量以及方法重复性等几个方面对测量不确定度来源进行了分析和量化评定,指出主要的不确定度来源是方法的重复性、标准工作曲线拟合以及峰面积的测量。The uncertainty for the determination of benzene in adhesives by gas chromatography was analyzed. The test indicated that when： the benzene content was 0.32%, the expended uncertainty was 0.01%.The sources of the uncertainty were anglyed and determined which resulted from preparation of standard solution, dilution process, linear fitting, weight of the sample, peak area, volume of dissolved and method precision. Through evaluation it was indicated that the main uncertainty for the determination were method precision, linear fitting and peak area.

关 键 词：气相色谱法 测量不确定度 胶粘剂 苯 

分 类 号：O657.7[理学—分析化学]