大气中C_1～C_(10)羰基化合物的分析测定  

Determination of C_1～C_(10) Carbonyls in the Atmosphere

作　　者：唐建辉[1] 王新明[1] 冯艳丽[1] 盛国英[1] 傅家谟[1] 

机构地区：[1]中国科学院广州地球化学研究所有机地球国家重点实验室,广州510640

出　　处：《分析化学》2003年第12期1468-1472,共5页Chinese Journal of Analytical Chemistry

基　　金：广东省环保局资助项目 (No .2 0 0 0 12 )

摘　　要：利用 2 ,4 二硝基苯肼 (DNPH)涂布硅胶管采集空气中的C1 ～C1 0 羰基化合物 ,经乙腈洗脱后用高效液相色谱 紫外检测器 (HPLC UV)分析检测。吸附管的采集效率 >95 % ,平行样相对标准偏差 <1 0 % ;化合物的检出限在 0 .0 5～ 0 .1 5 μg m3之间 ,方法适合于室内和室外环境中低浓度的羰基化合物的测定。2,4-Dinitrophenylhydrazine (DNPH) coated silica gel cartridge was used to collect C2?～C_ 10 carbonyls in ambient air. The sampled cartridges were immediately washed gravity feed elution with acetonitrile. And the DNPH derivatives of the carbonyls were analyzed by high performance liquid chromatography with ultraviolet detector. The collection efficiencies of the carbonyls were found to be more than 95%, and relative standard deviation of duplicate samples ( n 5 ) was less than 10%. The detection limits for the determination of these carbonyls were 0 05～0 15 μg/m 3. The method is applicable for monitoring low levels of carbonyls in indoor and outdoor air.

关 键 词：大气环境 羰基化合物 2 4-二硝基苯肼 高效液相色谱-紫外检测器 分析 测定 

分 类 号：X831[环境科学与工程—环境工程]