Laser-induced breakdown spectroscopy for solution sample analysis using porous electrospun ultrafine fibers as a solid-phase support

RSC Advances ◽  
2014 ◽  
Vol 4 (28) ◽  
pp. 14392 ◽  
Author(s):  
Qingyu Lin ◽  
Zhimei Wei ◽  
Mingjun Xu ◽  
Shuai Wang ◽  
Guanghui Niu ◽  
...  
Keyword(s):  
Solid Phase ◽  
Laser Induced Breakdown Spectroscopy ◽  
Sample Analysis ◽  
Ultrafine Fibers ◽  
Breakdown Spectroscopy ◽  
Solution Sample ◽  
Laser Induced Breakdown

scholarly journals Development of a Method for the Determination of Chromium and Cadmium in Tannery Wastewater Using Laser-Induced Breakdown Spectroscopy

2012 ◽  
Vol 2012 ◽  
pp. 1-7 ◽  
Author(s):  
Mahwish Bukhari ◽  
M. Ali Awan ◽  
Ishtiaq A. Qazi ◽  
M. Anwar Baig
Keyword(s):  
Solid Phase ◽  
Correlation Coefficients ◽  
Sample Surface ◽  
Tannery Wastewater ◽  
Laser Induced Breakdown Spectroscopy ◽  
Breakdown Spectroscopy ◽  
Surface Distance ◽  
Laser Induced Breakdown ◽  
Wastewater Samples

This paper illustrates systematic development of a convenient analytical method for the determination of chromium and cadmium in tannery wastewater using laser-induced breakdown spectroscopy (LIBS). A new approach was developed by which liquid was converted into solid phase sample surface using absorption paper for subsequent LIBS analysis. The optimized values of LIBS parameters were 146.7 mJ for chromium and 89.5 mJ for cadmium (laser pulse energy), 4.5 μs (delay time), 70 mm (lens to sample surface distance), and 7 mm (light collection system to sample surface distance). Optimized values of LIBS parameters demonstrated strong spectrum lines for each metal keeping the background noise at minimum level. The new method of preparing metal standards on absorption papers exhibited calibration curves with good linearity with correlation coefficients,R2in the range of 0.992 to 0.998. The developed method was tested on real tannery wastewater samples for determination of chromium and cadmium.

EXPRESS: Chemical Characterization Using Laser-Induced Breakdown Spectroscopy of Products Released from Lithium-Ion Battery Cells at Thermal Runaway Conditions

2021 ◽  
pp. 000370282110552
Author(s):  
Daniel Diaz ◽  
David W Hahn
Keyword(s):  
Solid Phase ◽  
Chemical Characterization ◽  
Lithium Ion ◽  
Thermal Runaway ◽  
Laser Induced Breakdown Spectroscopy ◽  
Breakdown Spectroscopy ◽  
Laser Induced Breakdown ◽  
Li Ion ◽  
Over Time ◽  
Battery Cells

Laser-induced breakdown spectroscopy (LIBS) was used to characterize the materials released by lithium-ion (Li-ion) cells at thermal runaway conditions. Commercial AAA-size, rechargeable, 3.7-V, 350-mAh, Li-ion battery cells were heated in a N2-atmosphere tubular chamber up to about 165 °C to induce thermal decomposition. Through measurements of the chamber internal temperature and LIBS emission intensities over time the onset temperature of thermal runaway (≈143 °C) and the duration of the cells outgassing (> 40 minutes) were determined. Relatively high intensity atomic emissions from C, H, F, Li, Na, and P were detected at different times during the heating experiments. The detection of analytes such as C and H was continuous over time. On the contrary, detection of F, Na, Li, and P was more irregular, indicating the presence of solid-phase analytes or analyte-bearing particles. A calibration scheme for estimation of the total mass/volume concentration of all carbon-based species sampled within the laser-induced plasma was developed.

Multi-energy calibration (MEC) applied to laser-induced breakdown spectroscopy (LIBS)

2018 ◽  
Vol 33 (10) ◽  
pp. 1753-1762 ◽  
Author(s):  
Diego Victor Babos ◽  
Alex Virgilio ◽  
Vinícius Câmara Costa ◽  
George Luis Donati ◽  
Edenir Rodrigues Pereira-Filho
Keyword(s):  
Solid Sample ◽  
Energy Calibration ◽  
Laser Induced Breakdown Spectroscopy ◽  
Sample Analysis ◽  
Breakdown Spectroscopy ◽  
Laser Induced Breakdown ◽  
Solid Sample Analysis

The multi-energy calibration (MEC) method is applied to solid sample analysis by laser-induced breakdown spectroscopy (LIBS).

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