수은막 GCRRDE를 이용한 해수 중 중금속의 동시 종분리 정량
Speciarion of Heavy Metal Ions in sea Water with a Hg-film Glassy Carbone Rotating Ring Disk Electrode
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Abstract
The addition of oxygenates to diesel fuel can significantly reduce particulate emissions. Dibutyl maleate (DBM) and tripropylene glycol methyl ether (TGME) have been identified as possible additives based on their physicochemical characteristics and performance in engine test. In this study, it was investigated to determine optimal condition for the analysis of potential diesel oxygenates using SPME technique with GC-FID. Four fibers were compared and CAR/PDMS fiber was found to be the most sensitive when used direct-sampling. An absorption time of 30min and a desorption time of 5min provided to be the most sensitivity. The effects of experimental parameters such as the addition of salts, agitation, absorption time, composition on the analysis were investigated. Analytical parameter such as linearity was also evaluated.