固相吸附-高效液相色谱法测定车内空气中醛酮的不确定度
尹桂林,周龙龙,刘成帅,侯勇,李秋诚,周保华
青岛海关技术中心,山东青岛 266002
Measurement uncertainty of aldehydes and ketones in air inside car by solid phase adsorption-high performance liquid chromatography
尹桂林,周龙龙,刘成帅,侯勇,李秋诚,周保华
Technical Center of Qingdao Customs, Qingdao 266002, China
摘要:对固相吸附-高效液相色谱法测定乘用车内空气中的醛酮类有机物结果进行不确定度评定,得汽车车内空气中醛酮类有机物测定值的扩展不确定度分别为:甲醛0.001 3 mg/m3、乙醛0.000 76 mg/m3、丙烯醛0.000 98 mg/m3。对各不确定度分量进行分析比较,发现采样过程中的采样体积及分析过程中的标准溶液配制的不确定度分量最大,建议在进行车内空气质量检测工作中应着重对这两个分量进行控制。
Abstract:The uncertainty of determination results of aldehydes and ketones in air inside car by HPLC with solid phase adsorption was evaluated. The expanded uncertainties were 0.001 3 mg/m3 for formaldehyde, 0.000 76 mg/m3 for acetaldehyde, and 0.000 98 mg/m3 for acrolein. The uncertainty components were analysized, and it was found that the main impacts on uncertainty were the volume in the sampling process and the preparation of standard solution in the analysis procedure which should be paid special attention to.
关键词:固相吸附;高效液相色谱;空气;醛酮;不确定度
Keywords:solid phase adsorption; HPLC; air; aldehydes and ketones; uncertainty
基金:青岛海关科研项目(QK201933;QK201926)
本文引用格式:
尹桂林,周龙龙,刘成帅,等.固相吸附-高效液相色谱法测定车内空气中醛酮的不确定度[J].化学分析计量,2020,29(5):138-142.
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