【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》(HJ683-2014)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。更多还原

【Abstract】 The standard methods for the detection of carbonyls in this paper refer to the US Environmental Protection Agency(USEPA) TO-11 A 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.更多还原