HPLC法测定车内15种醛酮类化合物  

Dtermination of 15 kinds of aldehydes and ketones by HPLC in vehicles

作　　者：许凯羿 江楠[1] 游刚[1] 艾森林[1] XU Kai-yi;JIANG Nan;YOU Gang;AI Sen-lin(Department of Full Vehicle Emission,China Automotive Engineering Research Institute Co.,Ltd.,Chongqing 401122,China)

机构地区：[1]中国汽车工程研究院股份有限公司整车排放检测部,重庆401122

出　　处：《化学工程师》2018年第7期35-38,共4页Chemical Engineer

基　　金：车辆排放与节能重庆市重点实验室资助项目

摘　　要：建立了一种用于测定车内15种醛酮类化合物的液相色谱分析方法。通过DNPH采样管使醛酮类化合物形成稳定的腙类化合物,用乙腈洗脱后在HPLC上进行定性定量分析。15种醛酮化合物在0.03~0.18μg·m L^(-1)浓度范围内线性良好,相关系数均在0.995以上。方法的平均回收率为87.3%~118.6%,精密度RSD值为0.48%~3.83%,检出限为0.001~0.014 mg·m^(-3)。本方法对丙烯醛和丙酮进行了有效分离,可以用于车内醛酮类化合物的测定。This research aims to find a liquid chromatography method for the determination of 15 kinds of aldehydes and ketones in vehicles. A stable hydrazone compound is formed by using theDNPH sampling tube, then the qualitative and quantitative analysis is conducted on HPLC aftereluting with acetonitrile.Fifteen kinds of aldehydes and ketones compounds were linear in theconeentration range of 0.03-0.18μg· mL-1, and the correlation coefficients were all above 0.995.The average recovery rate of this method was 87.3%-118.6%, and the precision RSD value was 0.48%-3.83%, and the detection limit was 0.001-0.014mg·m-3.This method is effeetivein separation of acrolein and acetone, and can be used for determination of aldehydes and ketonesin vehicles.

关 键 词：液相色谱 醛酮类化合物 丙烯醛 丙酮 

分 类 号：O657.72[理学—分析化学] X831[理学—化学]