Citation: Chen Yanjun , Lu Yinghua , Si Xiuhong , Shao Junfang , Sun Xihao , Wang Huiyun . Enrichment of Thiodicarb in Polluted Water and Its Gas Chromatographic Analysis. Chinese Journal of Analytical Chemistry, 1997, 25(5): 579-581. [复制]
Enrichment of Thiodicarb in Polluted Water and Its Gas Chromatographic Analysis
An enrichment procedure for thiodicarb in polluted water with 300~400μm acti-vated carbon cartridge by gas chromatographic analysis is presented.The absorption behav-ior of thiodicarb on 300~400 μm activated carbon and the absorption effeciency of thiodicarb on activated carbon of different sizes were studied.The best washing mothed for cartridge and concentration procedure for thiodicarb in polluted water were chosen.The detection lim-it and the minimum detectable concentration of thiodicarb in polluted water were 0.2 ng and 0.2 μm/L, respectively, The average recovery of thiodicarb by standard addition was in the range of 89.4%~105.2%.The relative standard deviation was lower than 5%.This method is simple, rapid, accurate and precise.