Gated and non-gated silver detection using microwave-assisted laser induced breakdown spectroscopy

Author(s):  
M. A. Wakil ◽  
Zeyad T. Alwahabi

The detection of silver using microwave-assisted laser induced breakdown spectroscopy (MW-LIBS) is demonstrated in solid and liquid samples at a 338.28 nm emission line.

Atoms ◽  
2019 ◽  
Vol 7 (3) ◽  
pp. 84 ◽  
Author(s):  
Ashwin P. Rao ◽  
Matthew T. Cook ◽  
Howard L. Hall ◽  
Michael B. Shattan

A hand-held laser-induced breakdown spectroscopy device was used to acquire spectral emission data from laser-induced plasmas created on the surface of cerium-gallium alloy samples with Ga concentrations ranging from 0–3 weight percent. Ionic and neutral emission lines of the two constituent elements were then extracted and used to generate calibration curves relating the emission line intensity ratios to the gallium concentration of the alloy. The Ga I 287.4-nm emission line was determined to be superior for the purposes of Ga detection and concentration determination. A limit of detection below 0.25% was achieved using a multivariate regression model of the Ga I 287.4-nm line ratio versus two separate Ce II emission lines. This LOD is considered a conservative estimation of the technique’s capability given the type of the calibration samples available and the low power (5 mJ per 1-ns pulse) and resolving power ( λ / Δ λ = 4000) of this hand-held device. Nonetheless, the utility of the technique is demonstrated via a detailed mapping analysis of the surface Ga distribution of a Ce-Ga sample, which reveals significant heterogeneity resulting from the sample production process.


2016 ◽  
Vol 31 (8) ◽  
pp. 1622-1630 ◽  
Author(s):  
Qingyu Lin ◽  
Xiaodan Han ◽  
Jie Wang ◽  
Zhimei Wei ◽  
Kunping Liu ◽  
...  

A novel, sensitive method based on crosslinked polyvinyl alcohol (PVA) was developed for determining trace-amounts of metallic elements in liquid samples using laser induced breakdown spectroscopy (LIBS).


2019 ◽  
Vol 34 (9) ◽  
pp. 1892-1899 ◽  
Author(s):  
M. A. Wakil ◽  
Zeyad T. Alwahabi

A 47 ± 7 μg. g−1 detection limit of chlorine in cement has been recorded, using microwave-assisted laser induced breakdown spectroscopy.


2014 ◽  
Vol 29 (5) ◽  
pp. 886-892 ◽  
Author(s):  
Motonobu Tampo ◽  
Masabumi Miyabe ◽  
Katsuaki Akaoka ◽  
Masaki Oba ◽  
Hironori Ohba ◽  
...  

In this study, an enhancement of emission intensity from laser ablation plume was achieved by coupling a pulsed microwave using a simple wire antenna


2020 ◽  
Vol 35 (1) ◽  
pp. 188-197 ◽  
Author(s):  
Xiaojiao Liu ◽  
Qingyu Lin ◽  
Yonghui Tian ◽  
Wenlong Liao ◽  
Tao Yang ◽  
...  

A simple but efficient strategy based on a matrix conversion method has been developed for determining trace metal ions in liquid samples using laser-induced breakdown spectroscopy (LIBS).


Sign in / Sign up

Export Citation Format

Share Document