<Original Paper>Desorption of Organic Solvents from Activated Charcoal with 2-Hydroxypyridine
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概要
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Gas chromatography has been widely used for analysis of solvent vapor. However, there have heen a difficulty that the target solvents were interfered with extraction solvent. A new extraction method of the solvent from activated charcoal with 2-hydroxypyridine was deviced. With this procedure, the target solvent was extracted with 2-hydroxypyridine in its liquid state (150℃) from charcoal and after cooling, solvent was liberated into the air from the solid state (20℃) of 2-hydroxypyridine. In the method, solvents in air could be accurately and precisely determined, because carbon disulfide, which interfered with target solvents in gas chromatography, was not used to extract.The recovery rates of common eight organic solvents were examined and high recoveries, more than 90 percent, were obtained in the solvents except acetone and methyl ethyl ketone. Moreover, the mean peak height of seven solvents was 51 times as high as that by the desorption with carbon disulfide by gas chromatography. The present method is considered to be available for the determination of solvent vapor in the workplaces.
- 川崎医療福祉大学の論文
著者
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Fujiki Yukio
Matsushita Science Center Of Industrial Hygiene
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MICHITSUJI Hiromi
Matsushita Science Center of Industrial Hygiene
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OGATA Masana
Kawasaki University of Medical Welfare
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Ogata Masana
Department of Medical Social Work, Faculty of Medical Welfare, Kawasaki University of Medical Welfar
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Ogata Masana
Department Of Medical Social Work Faculty Of Medical Welfare Kawasaki University Of Medical Welfare
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