引用本文:
何立芳, 林丹丽, 李耀群. 多环芳烃混合物的快速导数-恒能量同步荧光光谱分析[J]. 应用化学,
2004, 21(9): 937-941.
Citation: HE LI-Fang, LIN Dan-Li, LI Yao-Qun. Derivative Constant-energy Synchronous Fluorescence Spectroscopy for Rapid Analysis of Polynuclear Aromatic Hydrocarbon Mixtures[J]. Chinese Journal of Applied Chemistry, 2004, 21(9): 937-941.
Citation: HE LI-Fang, LIN Dan-Li, LI Yao-Qun. Derivative Constant-energy Synchronous Fluorescence Spectroscopy for Rapid Analysis of Polynuclear Aromatic Hydrocarbon Mixtures[J]. Chinese Journal of Applied Chemistry, 2004, 21(9): 937-941.
多环芳烃混合物的快速导数-恒能量同步荧光光谱分析
摘要:
通过选择合适的能量差(Δν=1300 cm-1)并结合导数技术,对2,3-苯并芴、3,4,8,9-二苯并芘、苯并[α]芘和2,3-苯并蒽进行了导数恒能量同步荧光分析。结果表明,样品只需经1次扫描,即可利用导数恒能量同步荧光光谱对上述多环芳烃(PAHs)进行同时分析和定量测定;二阶导数恒能量同步荧光法测定结果表明,2,3苯并芴、3,4,8,9-二苯并芘、苯并[α]芘和2,3苯并蒽的检出限依次为0.22×10-9、0.52×10-9、0.46×10-9和0.24×10-9 g/mL。此方法应用于分析海水样、自来水样、大气飘尘样中多环芳烃,均取得了良好的效果,回收率分别为87%~99.5%、88%~101%和84%~105%。
English
Derivative Constant-energy Synchronous Fluorescence Spectroscopy for Rapid Analysis of Polynuclear Aromatic Hydrocarbon Mixtures
Abstract:
A derivative constant-energy synchronous fluorescence spectroscopy for rapid and simultaneous analysis of four polynuclear aromatic hydrocarbons(PAHs):2,3-benzofluorene, benzo[α]pyrene, 3,4,8,9-dibenzopyrene and 2,3-benzoanthracene has been developed. Only a single scan is needed for the simultaneous identification and quantitative determination of above-mentioned PAHs. The detection limit for 2,3-benzofluorene, benzo[α]pyrene, 3,4,8,9-dibenzopyrene and 2,3-benzoanthracene is 0.22×10-9, 0.52×10-9, 0.46×10-9 and 0.24×10-9 g/mL, respectively. By using this method, the four PAHs in real samples were determined directly and with good results. The recovery of PAHs in tap water, seawater and airborne particulates was 87%~99.5%, 88%~101% and 84%~105% respectively.
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