Laser Induced Fluorescence Extension to Non-Fluorescent Materials

摘要

It was demonstrated that laser induced fluorescence (LIF) was a highly sensitive (sub-parts-per-trillion) technique for general application to trace chemical analysis. To gain enhanced selectivity, LIF was combined with the separation capability of chromatographic techniques. A new approach being studied is to use fluorescent quenching as the means of quantitative detection of nonfluorescent materials. This technique along with chromatographic separation greatly increases the number of compounds which can be analyzed by LIF. (ERA citation 04:024073)