Quantitative analyses of Mn, V, and Si elements in steels using a portable laser-induced breakdown spectroscopy system based on a fiber laser

Abstract

<p>An approach of portable laser-induced breakdown spectroscopy based on a fiber laser with a background removal method was proposed.</p>

Modified iterative wavelets for background removal in laser-induced breakdown spectroscopy based on fiber laser ablation

“…In a specific spectral range, the partial spectral data after background removal might appear with negative values, 26 such as the 386.36–393.05 nm region in Fig. 9b.…”

“…According to the linear relationship between the normalized intensity and the content of the target element, the R 2 factor and root mean square error of cross validation (RMSECV) were used to evaluate analytical accuracy. 26…”

“…The RMSECV values for Mn, V, and Si elements were 0.037, 0.041 and 0.079 wt%, respectively. 26 These studies have demonstrated that the wavelet method can greatly improve analytical accuracy. However, background calculations are greatly influenced by the spectral range input into the wavelet algorithm, which was set manually in previous studies.…”

Compact diode-pumped Nd:YAG laser for remote analysis of low-alloy steels by laser-induced breakdown spectroscopy

“…Recently, powerful ber lasers have been recognized as perspective tools for LIBS. [24][25][26][27] These lasers have adequate beams that can be focused into small spots. However, such lasers produce laser pulses a few tenths of nanoseconds in length, which are limited to a few mJ pulse energy.…”

Recent technological progress in Asia from the first Asian Symposium on Laser-induced Breakdown Spectroscopy

“…(ii) Regarding instrumentation, more than eight groups in China are committed to manufacturing instruments for industrial production. Two research groups from the Huazhong University of Science and Technology and Sichuan University have developed desktop and portable LIBS systems [62,63]. (iii) Regarding LIBS applications, the steel industry has been an important area.…”