Quantitative trace elemental analysis by laser-induced breakdown spectroscopy with dried droplet pretreatment

2020 ◽  
Vol 35 (10) ◽  
pp. 2224-2230 ◽  
Author(s):  
Yuanchao Liu ◽  
Yi-Kong Hsieh ◽  
Yanwu Chu ◽  
Irfan Ahmed ◽  
Zhenlin Hu ◽  
...  
Keyword(s):  
Elemental Analysis ◽  
Treatment Method ◽  
Laser Induced Breakdown Spectroscopy ◽  
Acid Digestion ◽  
Solid Samples ◽  
Trace Elemental Analysis ◽  
Breakdown Spectroscopy ◽  
Laser Induced Breakdown ◽  
Trace Elemental ◽  
Pre Treatment

A dried droplet pre-treatment method for small solid samples containing trace elements, involving acid digestion of the sample followed by drying of a droplet on filter paper free of the analytes and quantitative elemental analysis by LIBS.

Trace elemental analysis by laser-induced breakdown spectroscopy—Biological applications

2012 ◽  
Vol 67 (11-12) ◽  
pp. 233-243 ◽  
Author(s):  
Jozef Kaiser ◽  
Karel Novotný ◽  
Madhavi Z. Martin ◽  
Aleš Hrdlička ◽  
Radomír Malina ◽  
...  
Keyword(s):  
Elemental Analysis ◽  
Laser Induced Breakdown Spectroscopy ◽  
Biological Applications ◽  
Trace Elemental Analysis ◽  
Breakdown Spectroscopy ◽  
Laser Induced Breakdown ◽  
Trace Elemental

scholarly journals Electrospray deposition followed by laser-induced breakdown spectroscopy (ESD-LIBS): a new method for trace elemental analysis of aqueous samples

2019 ◽  
Vol 34 (10) ◽  
pp. 2016-2026 ◽  
Author(s):  
L. Ripoll ◽  
M. Hidalgo
Keyword(s):  
Elemental Analysis ◽  
New Method ◽  
Laser Induced Breakdown Spectroscopy ◽  
Aqueous Samples ◽  
Electrospray Deposition ◽  
Trace Elemental Analysis ◽  
Breakdown Spectroscopy ◽  
Alternative Approach ◽  
Laser Induced Breakdown ◽  
Trace Elemental

Hyphenation of electrospray deposition with laser-induced breakdown spectroscopy as an alternative approach for sensitive elemental analysis of liquids with high possibilities of automation.

Evaluation of a Thermoelectric Cooler as a Sample Pre-Treatment Method for Laser-Induced Breakdown Spectroscopy (LIBS) Analysis of Liquid Samples

2019 ◽  
Vol 74 (3) ◽  
pp. 285-294
Author(s):  
Hanin Athirah Harun ◽  
Roslinda Zainal
Keyword(s):  
Principal Component ◽  
Treatment Method ◽  
Laser Induced Breakdown Spectroscopy ◽  
Thermoelectric Cooler ◽  
Breakdown Spectroscopy ◽  
Liquid Samples ◽  
Direct Laser ◽  
Laser Induced Breakdown ◽  
Pre Treatment ◽  
Clustering Pattern

In this study, the performance of a thermoelectric cooler (TEC) as a simple and easy-to-assemble freezing instrument has been evaluated. Experiments were carried out using samples with different viscosity ranging from 44.07 to 16 965.80 MPa. The analysis of sodium component of the samples by direct laser irradiation of frozen samples showed emission enhancement and higher signal-to-noise ratio compared to that of liquids. This work also focused on using chemometrics methods such as principal component analysis (PCA) to compare the principal component score separation and clustering pattern between frozen and liquid samples. The PCA was constructed by dividing the samples into two different categories: (i) type (paste, cream, gel, and oil) and (ii) viscosity (more than and less than 10 000 MPa). The frozen samples showed a more established separation and clustering compared to that acquired from the liquid samples. However, poorer clustering pattern of some frozen samples could be due to the heat transfer during laser–sample interaction inducing surface melting and splashing. The average laser-induced breakdown spectroscopy (LIBS) spectra were taken at as many different surface areas as possible to ensure the sample surface always maintain similar freezing temperature. This work showed that the TEC pre-treatment method had improved the LIBS measurement of the liquid samples.

Rapid elemental analysis of human teeth using laser induced breakdown spectroscopy

2021 ◽  
Vol 602 ◽  
pp. 412495
Author(s):  
Javeria Batool ◽  
Nasir Amin ◽  
Yasir Jamil ◽  
NekM. Shaikh ◽  
Shamoon Al Islam
Keyword(s):  
Elemental Analysis ◽  
Laser Induced Breakdown Spectroscopy ◽  
Human Teeth ◽  
Breakdown Spectroscopy ◽  
Laser Induced Breakdown

Forensic analysis of hand-written documents using laser-induced breakdown spectroscopy (LIBS) and chemometrics

2021 ◽  
Author(s):  
Felipe Ferri Hilario ◽  
Matheus Lima de Mello ◽  
Edenir Rodrigues Pereira-Filho
Keyword(s):  
Elemental Analysis ◽  
Forensic Analysis ◽  
Laser Induced Breakdown Spectroscopy ◽  
Breakdown Spectroscopy ◽  
Laser Induced Breakdown ◽  
Minimum Number ◽  
Non Destructive ◽  
Ball Point ◽  
Maximum Differentiation

With the use of Laser Induced Breakdown Spectroscopy (LIBS), fast and semi non-destructive elemental analysis of ball-point pen writings has been performed directly from paper surfaces, aiming to obtain maximum differentiation between pens with a minimum number of pulses.

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