Laser excited atomic fluorescence spectrometry — a review☆

摘要: Abstract This review focuses on the development of new instruments, and applications laser excited atomic fluorescence spectrometry, LEAFS, in recent years since last published reviews. Such developments include solid-state tunable lasers, deep UV use charge coupled detectors (CCDs), LEAFS for trace metal determination various samples. The advent diode lasers with their now somewhat improved range wavelengths power output, provides opportunities research LEAFS. further coupling second third harmonic crystals to pulsed shows promise compact robust instrumentation. There have been no instrumental that might provide more isotopic selectivity beyond elements like uranium where spectral isotope splitting is greater than most elements, but diodes could this due potential an output very narrow bandwidth. optical parametric oscillator-based has enabled be much practical then past when dye were used. should harbinger complex real sample analyses can not done by other techniques reasons sensitivity or selectivity. Array additional degree freedom provision information rapidly, which aid study samples produce background problems. literature indicates sensitivity, ease method well-established, there are substantial analytical disadvantages technique limitations associated single element at a time mode operation complexity systems. Laser technology continues develop heralds bright future