Abstract

An LIBS/LEAFS (laser-induced breakdown spectroscopy/laser-excited atomic fluorescence spectrometry) combination with the use of simple open-air ultraviolet (UV) ablation has been investigated in terms of its analytical possibilities for the determination of cobalt in three solid sample matrices: graphite, soil, and steel. The fluorescence of cobalt was excited from a level which was already populated in the ablation plasma and was monitored at the Stokesshifted wavelength. The optimal time delay between the ablating and exciting pulses was 16 mu s. Detection limits in the ppb to ppm range and linearity over about four orders of magnitude were obtained. Excellent correlation of the LIBS/LEAFS with laser ablation inductively coupled plasma mass spectrometry (LA-ICP-MS) and the certified value for Co in an SRM soil standard showed that both the precision and the accuracy of the LIBS/LEAFS method were satisfactory.

High-sensitivity determination of available cobalt in soil using laser-induced breakdown spectroscopy assisted with laser-induced fluorescence

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Appl. Opt. 60(29) 9062-9066 (2021)

Determinations of trace boron in superalloys and steels using laser-induced breakdown spectroscopy assisted with laser-induced fluorescence

Changmao Li, Zhongqi Hao, Zhimin Zou, Ran Zhou, Jiaming Li, Lianbo Guo, Xiangyou Li, Yongfeng Lu, and Xiaoyan Zeng
Opt. Express 24(8) 7850-7857 (2016)

Determination of Pb in soils by double-pulse laser-induced breakdown spectroscopy assisted by continuum wave-diode laser-induced fluorescence

Gustavo Nicolodelli, Paulino R. Villas-Boas, Carlos R. Menegatti, Giorgio S. Senesi, Daniel V. Magalhães, Daniele de Souza, Débora M. B. P. Milori, and Bruno S. Marangoni
Appl. Opt. 57(28) 8366-8372 (2018)

Detection of trace phosphorus in steel using laser-induced breakdown spectroscopy combined with laser-induced fluorescence

X. K. Shen, H. Wang, Z. Q. Xie, Y. Gao, H. Ling, and Y. F. Lu
Appl. Opt. 48(13) 2551-2558 (2009)

Background removal in soil analysis using laser- induced breakdown spectroscopy combined with standard addition method

R. X. Yi, L. B. Guo, X. H. Zou, J. M. Li, Z. Q. Hao, X. Y. Yang, X. Y. Li, X. Y. Zeng, and Y. F. Lu
Opt. Express 24(3) 2607-2618 (2016)