Le Bihan A, Lijour Y, Giamarchi P, Burel-Deschamps L, Stephan L
UMR CNRS-UBO 6521, Faculté des Sciences et Techniques, 6 avenue Victor Le Gorgeu -BP 809, 29285 Brest, France.
Anal Bioanal Chem. 2003 Mar;375(6):815-9. doi: 10.1007/s00216-003-1795-3. Epub 2003 Feb 22.
Fluorescence was induced by coupling a laser with an optical parametric oscillator (OPO) to develop an analytical method for the direct determination of lead content, at ultra-trace level, in seawater by electrothermal atomization-laser-excited atomic fluorescence (ETA-LEAF). The optimization of atomization conditions, laser pulse energy, and mainly temporal parameters allowed us to reach a 3 fg detection limit (0.3 ng L(-1)) despite the low repetition rate of the device. The expected error on predicted concentrations of lead, at trace levels, in seawater was below 15%.
