长沙市降雨对醛酮化合物浓度变化的影响研究  

Effect of Rainfall on the Concentration of Carbonyls in Changsha

作　　者：翟海晴 蒋朝晖 郑玄 赵文玉 王琼 Zhai Haiqing;Jiang Zhaohui;Zheng Xuan;Zhao Wenyu;Wang Qiong(School of Chemistry of Food Engineering,Changsha University of Science and Technology,Changsha 410114,China)

机构地区：[1]长沙理工大学化学与食品工程学院,湖南长沙410114

出　　处：《广东化工》2021年第19期136-136,135,共2页Guangdong Chemical Industry

基　　金：长沙市科技局计划项目(K1403048-31);湖南省重点研发计划项目(2018SK0211)。

摘　　要：本文对醛酮化合物的检测标准方法参照美国环保署(USEPA)TO-11A标准、《环境空气醛、酮类化合物的测定-高效液相色谱法》(HJ 683-2014)和《大气降水样品的采集与保存》(GB13580.2-92),在2018年4月期间对长沙地区大气中降雨后醛酮化合物的含量进行了检测,得到样品后通过高效液相色谱法对其进行分析,发现降水后大气中醛酮化合物的含量大大降低,证明了湿沉降是大气中醛酮化合物重要的汇。The standard methods for the detection of carbonyls in this paper refer to the US Environmental Protection Agency(USEPA)TO-11A standard,“Determination of aldehydes and ketones in ambient air-HPLC”(HJ 683-2014)and“Collection and preservation of precipitation samples”(GB13580.2-92).In April 2018,the content of carbonyls in the atmosphere of Changsha area after rainfall was detected and analyzed by high performance liquid chromatography.It was found that the content of carbonyls in the atmosphere decreased greatly after precipitation,proving that wet deposition is an important sink of aldehydes and ketones in the atmosphere.

关 键 词：醛酮化合物 高效液相色谱 湿沉降 长沙 浓度变化 

分 类 号：TQ[化学工程]