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KMID : 0895420140240030353
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Journal of Korean Society of Occupational and Enviromental Hygiene
2014 Volume.24 No. 3 p.353 ~ p.358
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Research on desorption and stability of benzene, toluene, acetone and n-hexane of activated carbon acquired from domestic market
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Lee Na-Roo
Yi Gwang-Yong
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Abstract
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Purpose: This study was conducted to evaluate desorption efficiency and storage stability on activated carbon acquired form domestic market.
Materials: Mixture of acetone, benzene, normal hexane and toluene was injected on four types of charcoal 100 ㎎. After overnight, charcoal was desorbed by carbon disulfide 1 ㎖ and analyzed by gas chromatography with flame ionization detector.
Results: Desorption efficiency of benzene, normal hexane and toluene in charcoal tubes were 95% ∼ 105%. But desorption efficiency of acetone in charcoal tubes was below 75% and different from types of charcoal. The more injected amount of acetone on charcoal showed higher desorption efficiency. Acetone injected on charcoal tubes migrated from front section into back section after 10 days storage at room temperature.
Conclusions: Desorption efficiency and storage stability of activated carbon acquired from domestic market was good for benzene, normal hexane and toluene. The activated carbon acquired from domestic market has ability to be used as sampling media.
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KEYWORD
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aceton, charcoal tube, desorption, migration
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