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Line-narrowed argon fluoride LA-LEAF for trace arsenic analysis

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Abstract

A tunable, line-narrowed ArF excimer laser was used in combination with Nd:YAG ablation for LA-LEAF (LA-LIF) determination of As in steel and dried seaweed. Relative to previous work with a standard ArF, the line-narrowing had minimal effect on the selectivity in steel plasmas. Excitation scanning did show that both the signal and limiting background result from a standard fluorescence mechanism. Preliminary work in seaweed found a detection limit of 1.0 ppm and indicated that more laser energy and further narrowing would improve detection limits slightly. Limiting background in seaweed was ArF-derived.

Graphical abstract: Line-narrowed argon fluoride LA-LEAF for trace arsenic analysis

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Publication details

The article was received on 14 Aug 2019, accepted on 05 Nov 2019 and first published on 05 Nov 2019


Article type: Communication
DOI: 10.1039/C9JA00286C
J. Anal. At. Spectrom., 2020, Advance Article

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    Line-narrowed argon fluoride LA-LEAF for trace arsenic analysis

    P. D. Tribbett, C. A. Jones, A. G. Anders, B. Rougeau and J. A. Merten, J. Anal. At. Spectrom., 2020, Advance Article , DOI: 10.1039/C9JA00286C

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