applications of sorbent sampling techniques and capillary gas chromatography for the determination of halogenated hydrocarbons in the atmosphere

• Main Authors: Miaw-Jin Lin, 廖國華
• Other Authors: J. C. Gaston Wu
• Format: Others
• Language: zh-TW
• Published: 1993
• Online Access: http://ndltd.ncl.edu.tw/handle/79471280053646884344

碩士 === 國立師範大學 === 化學學系 === 81 === Halogenated hydrocarbons still play important role in industrial ductions and applications . Some of these compounds with high are volatile organic compounds and can vaporize and distribute air . Because of their possible hazards to human , various determination of halogenated hydrocarbons have been published . , two methods with different pretreatment processes are developed capillary GC analyses . One uses charcoal sampling tube technique for sample collection , the tube is then pretreated by solvent desorption . The other sampling tube technique followed by thermal desorption . Analytes methods are separated with capillary gas chromatography andth an electron capture detector . Due to their relatively high method detection limits , the lity of the first method is limited only to regions such as work high contamination . The second method with lower methods , but higher cost can be applied more widely .