摘要
采用2,4-二硝基苯肼(DNPH)/高效液相色谱(HPLC)方法,于2018年6月至9月对镇江市大气醛酮类污染的状况进行了测定与分析。镇江大气中醛酮类化合物的平均质量浓度约为37.8μg/m 3,主要成分是丙酮、甲醛、乙醛和苯甲醛,占总量的91%,乙醛和甲醛可能来自相同的污染源。镇江大气醛酮类污染受到当地气象条件和人类活动的影响。
The concentrations of aldehydes and ketones in the ambient air of Zhenjiang were measured by 2,4-dinitrophenylhydrazine(DNPH)/high performance liquid chromatography(HPLC)from June to September in 2018.The average concentration of total aldehydes and ketones was 37.8μg/m 3.The main carbonyl compounds were acetone,formaldehyde,acetaldehyde and benzaldehyde,which account for 91%of the total mass of carbonyl compounds.The acetaldehyde and formaldehyde may come from the same pollution source.The carbonyl level in the atmosphere of Zhenjiang was subject to the local meteorological factors and the anthropogenic activities.
作者
郭卿
杨开放
Guo Qing;Yang Kaifang(Zhenjiang Environmental Monitoring Centre,Zhenjiang 212000,China)
出处
《环保科技》
2020年第6期24-27,共4页
Environmental Protection and Technology
关键词
大气
羰基化合物
醛酮类化合物
ambient air
carbonyl compounds
aldehydes and ketones
