Development of an analytical method for polycyclic aromatic hydrocarbons and their derivatives
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- 作者：Prycek ; Jií ; Ciganek ; Miroslav ; &Scaron ; imek ; Zdenek
- 关键词：Extraction methods ; Polynuclear aromatic hydrocarbons
- 刊名：Journal of Chromatography A
- 出版年：2004
- 出版时间：March 19, 2004
- 年：2004
- 卷：1030
- 期：1-2
- 页码：103-107
- 全文大小：90.2 K
文摘
The possibilities of utilising pressurised liquid extraction for five nitro-polycyclic aromatic hydrocarbons from an inert matrix are shown. Different extraction temperatures and pressures were tested. The highest recoveries were obtained at extraction pressure 14MPa and temperature 100°C. Separation of non-polar, aromatic and polar fractions by the silica gel column chromatography is shown. n-Hexane, cyclohexane and dichloromethane as a solvent were tested. The best separations of monitored fractions were obtained, when extract was dissolved in cyclohexane. Non-polar and aromatic fractions eluted together when the extract was dissolved in dichloromethane.