二阶导数同步荧光法测定卷烟主流烟气中的苯并（a）芘
[Determination of benzo(a)pyrene in cigarette mainstream smoke by second-order-derivative synchronous fluorescence].
作者信息
Fan Hu, Sheng Linag-quan, Tong Hong-wu, Jin Zhong-xiu, Liu Shao-min
机构信息
Research Center of Tobacco and Health, University of Science and Technology of China, Hefei 230052, China.
出版信息
Guang Pu Xue Yu Guang Pu Fen Xi. 2005 Oct;25(10):1627-9.
The synchronous fluorescence, first-order and second-order-derivative synchronous fluorescence spectra of BaP in cigarette mainstream smoke were studied. It was indicated that the second-order-derivative synchronous fluorescence spectrum could decrease the disturbances of BaP homologous compounds and background of sample. Hereby the present paper introduces a new method to determine BaP in cigarette mainstream smoke by solid-phase-extraction second-order-derivative synchronous fluorescence. The detection limit is 0.2 ng x mL(-1), the average recoveries of BaP are 80.2%-86.2%, and the RSD is 2.64%-3.02%.
研究了卷烟主流烟气中苯并[a]芘的同步荧光、一阶导数同步荧光光谱和二阶导数同步荧光光谱。结果表明，二阶导数同步荧光光谱可减少苯并[a]芘同系物及样品背景的干扰。据此，本文介绍了一种用固相萃取二阶导数同步荧光法测定卷烟主流烟气中苯并[a]芘的新方法。检出限为0.2 ng·mL⁻¹，苯并[a]芘的平均回收率为80.2% - 86.2%，相对标准偏差为2.64% - 3.02%。
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