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Citation: Shen Xueyou, Liu Yongjian, Shen Hongxin, Zhu Lizhong. Automatic Analysis of Trace Polycyclic Aromatic Hydrocarbons in Ambient Air by High Performance Liquid Chromatography[J]. Chinese Journal of Applied Chemistry, ;1999, 16(5): 79-81. shu

Automatic Analysis of Trace Polycyclic Aromatic Hydrocarbons in Ambient Air by High Performance Liquid Chromatography

1.
Department of Environmental Science, Zhejiang University, Hangzhou 310028

Received Date: 29 December 1998
Available Online: 24 May 1999
Fund Project: 浙江省科技计划项目(98-2-087) (98-2-087)

An automatic analytical method by HPLC for vapor and particle polycyclic aromatic hydrocarbons(PAHs) in ambient air is proposed. The PAHs were sampled simutaneously by a little volume and low noise sampling pump and extracted by a mixture of dichloromethane and methyl cyanide, concentrated by nitrogen sweeping, injected automatically and detected by a fluorometric detector with programmed excitation and emmission wavelength pairs. The mobile phase is a linear gradient mixture of methanol and water. The relative standard deviations of the retention time and peak height were 0.05%~0.39% and 0.68%~1.29%, respectively at PAHs concentration levels of 14.14~2360.0 μg/L with the linearly regressive factors being over 0.999. The detection limits were 5.30 ng/L for fluorene and 291.30 ng/L for fluoranthene.
- polycyclic aromatic hydrocarbon,
- high performance liquid chromotography,
- trace analysis,
- air
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