Time-resolved laser-induced fluorescence with high-performance liquid chromatography for analysis of polycyclic aromatic hydrocarbon mixtures |
| |
| Authors: | J.H. Richardson K.M. Larson G.R. Haugen D.C. Johnson J.E. Clarkson |
| |
| Affiliation: | General Chemistry Division, Lawrence Livermore Laboratory, University of California, Livermore, California 94550 U.S.A. |
| |
| Abstract: | Time-resolved fluorescence is used to enhance the selectivity for polycyclic aromatic hydrocarbon mixtures by high-performance liquid chromatography. A pulsed laser is used as the excitation source. Only fluorophores with long fluorescence lifetimes (e.g. fluoranthene) are monitored if the delay between excitation and detection is sufficiently long. Limits of detection are of the order of 1–10 pg (5–50 fmol). The advantages are illustrated with a sample from the condensed steam distillate following a coal gasification experiment. |
| |
| Keywords: | |
| 本文献已被 ScienceDirect 等数据库收录！ |
