scholarly journals Qualitative analysis of black stone and its application for detecting Ag and Pb in liquid sample by laser-induced breakdown spectroscopy (LIBS)

2016 ◽  
Author(s):  
Hery Suyanto
Keyword(s):  
Qualitative Analysis ◽  
Laser Induced Breakdown Spectroscopy ◽  
Liquid Sample ◽  
Black Stone ◽  
Breakdown Spectroscopy ◽  
Laser Induced Breakdown

Qualitative analysis of Pb liquid sample using laser-induced breakdown spectroscopy (LIBS)

2013 ◽  
Author(s):  
Hery Suyanto ◽  
Ni Nyoman Rupiasih ◽  
T. B. Winardi ◽  
M. Manurung ◽  
K. H. Kurniawan
Keyword(s):  
Qualitative Analysis ◽  
Laser Induced Breakdown Spectroscopy ◽  
Liquid Sample ◽  
Breakdown Spectroscopy ◽  
Laser Induced Breakdown

Classification accuracy improvement by data preprocessing in handheld laser-induced breakdown spectroscopy

2019 ◽  
Vol 11 (40) ◽  
pp. 5177-5184 ◽  
Author(s):  
Jiujiang Yan ◽  
Ping Yang ◽  
Ran Zhou ◽  
Shuhan Li ◽  
Kun Liu ◽  
...  
Keyword(s):  
Qualitative Analysis ◽  
Classification Accuracy ◽  
Data Preprocessing ◽  
Laser Induced Breakdown Spectroscopy ◽  
Accuracy Improvement ◽  
Breakdown Spectroscopy ◽  
Laser Induced Breakdown

Qualitative analysis using handheld laser-induced breakdown spectroscopy (HH-LIBS) usually suffers from spectral fluctuation.

scholarly journals Improvement of laser induced breakdown spectroscopy signal for sodium chloride solution

2018 ◽  
Vol 14 ◽  
pp. 429-433 ◽  
Author(s):  
Hanin Athirah Harun ◽  
Roslinda Zainal
Keyword(s):  
Sodium Chloride ◽  
Treatment Approach ◽  
Freezing Point ◽  
High Energy ◽  
Laser Induced Breakdown Spectroscopy ◽  
Liquid Sample ◽  
Breakdown Spectroscopy ◽  
Liquid Samples ◽  
Laser Induced Breakdown ◽  
Pre Treatment

Laser induced breakdown spectroscopy (LIBS) is one of the analytical spectroscopy technique used in determining elemental composition of solid, liquid or gas sample using high energy laser pulse. However, LIBS technique associated with liquid sample often suffers from strong splashing and shockwave, thereby affecting the LIBS experiment repeatability and performance analysis. Therefore, a simple and quick-freeze sample pre-treatment approach using Peltier Thermoelectric Cooler (TEC) to solidify the water is applied to maintain the inherent homogeneity and chemical composition of the initial liquid sample before each LIBS analysis. This approach successfully solidified and maintained the liquid sample at its freezing point throughout the LIBS signal acquisition process. In this work, the qualitative analysis liquid samples and its solidified form, consisting of 0.5, 1.0, 1.5 and 2.0 mol/L sodium chloride (NaCl) were determined under similar experimental conditions by using LIBS. Plasmas were produced by focusing the output of Nd: YAG laser (1064nm, 6 ns and 1 Hz) on the surface of the bulk NaCl solution and its solidified form. LIBS signatures for sodium (Na) and chlorine (Cl) atomic emission lines (589.00 and 499.55 nm, respectively) were collected for estimating sodium and chlorine depositions in NaCl solutions to indicate correlation between their assay and LIBS measurements. For solidified sample, Na and Cl showed improved signal-to-noise ratio and limits of detection (47.8% and 8.8%, respectively) without the difficulties usually associated with liquid samples, demonstrating the benefits of this sample pre-treatment approach.

Laser-induced breakdown spectroscopy using a porous silicon substrate produced by metal-assisted etching: microanalysis of a strontium chloride aqueous solution as an example

2020 ◽  
Vol 35 (10) ◽  
pp. 2239-2247
Author(s):  
Ayumu Matsumoto ◽  
Yusuke Shimazu ◽  
Sakiko Yoshizumi ◽  
Haruka Nakano ◽  
Shinji Yae
Keyword(s):  
Aqueous Solution ◽  
Porous Silicon ◽  
Gold Nanoparticle ◽  
Silicon Substrate ◽  
Laser Induced Breakdown Spectroscopy ◽  
Strontium Chloride ◽  
Liquid Sample ◽  
Breakdown Spectroscopy ◽  
Laser Induced Breakdown ◽  
Porous Silicon Substrate

The LIBS signal of the dry residue from a small amount of liquid sample is significantly enhanced by using a porous silicon substrate produced by gold-nanoparticle-assisted etching.

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