Abstract

Laser-induced fluorescence has been demonstrated to be a very powerful technique for ultratrace analysis in liquid samples. This paper presents results obtained for gold analysis in river water. Single-step excited direct line fluorescence is performed in a commercial graphite furnace tube atomizer. A specially designed dual monochromator setup is used to correct background fluorescence resulting from a high concentration of molecular species in the matrix. Sensitivity is illustrated by detection limits obtained in pure water (4 fg for cobalt and 10 fg for gold), and the background correction efficiency is demonstrated by the analysis of gold in river water at 300 fg level with a 15% precision.

Design and daytime performance of laser-induced fluorescence spectrum lidar for simultaneous detection of multiple components, dissolved organic matter, phycocyanin, and chlorophyll in river water

Yasunori Saito, Kei Kakuda, Mizuho Yokoyama, Tomoki Kubota, Takayuki Tomida, and Ho-Dong Park
Appl. Opt. 55(24) 6727-6734 (2016)

Detection of trace amounts of Cr by two laser-based spectroscopic techniques: laser-enhanced ionization in flames and laser-induced fluorescence in graphite furnace

Ove Axner and Halina Rubinsztein-Dunlop
Appl. Opt. 32(6) 867-884 (1993)

Analysis of spectroscopic measurements of leaf water content at terahertz frequencies using linear transforms

Sillas Hadjiloucas, Roberto K. H. Galvão, and John W. Bowen
J. Opt. Soc. Am. A 19(12) 2495-2509 (2002)

Hot Tube Atomic Absorption Spectrochemistry

Ray Woodriff and Ronald W. Stone
Appl. Opt. 7(7) 1337-1339 (1968)

Detection of traces in semiconductor materials by two-color laser-enhanced ionization spectroscopy in flames

Ove Axner, Mats Lejon, Ingemar Magnusson, Halina Rubinsztein-Dunlop, and Sten Sjöström
Appl. Opt. 26(17) 3521-3525 (1987)