Highly sensitive analysis of trace Pb in aqueous solution using electro-deposition and spark-discharge assisted laser-induced breakdown spectroscopy

2021 ◽  
Author(s):  
Qiuyun Wang ◽  
Anmin Chen ◽  
Yutong Chen ◽  
Yuanfei Jiang ◽  
Suyu Li ◽  
...  
Keyword(s):  
Aqueous Solution ◽  
Heavy Metal ◽  
Spark Discharge ◽  
Laser Induced Breakdown Spectroscopy ◽  
Deposition Method ◽  
Sensitive Analysis ◽  
Electro Deposition ◽  
Breakdown Spectroscopy ◽  
Highly Sensitive ◽  
Laser Induced Breakdown

This study used laser-induced breakdown spectroscopy (LIBS) combined with spark discharge (SD) and electro-deposition method to analyze trace heavy metal Pb in an aqueous solution. First, the electro-deposition method was...

Highly sensitive analysis of trace elements in aqueous solutions using surface-enhanced and discharge-assisted laser-induced breakdown spectroscopy

2022 ◽  
Author(s):  
Qiuyun Wang ◽  
Ting Ge ◽  
Yitong Liu ◽  
Luyun Jiang ◽  
Anmin Chen ◽  
...  
Keyword(s):  
Heavy Metal ◽  
Trace Elements ◽  
Quantitative Analysis ◽  
Aqueous Solutions ◽  
Laser Induced Breakdown Spectroscopy ◽  
Sensitive Analysis ◽  
Breakdown Spectroscopy ◽  
Highly Sensitive ◽  
Surface Enhanced ◽  
Laser Induced Breakdown

By combining surface-enhanced and discharge-assisted laser-induced breakdown spectroscopy (LIBS), the study successfully realized the quantitative analysis of trace heavy metal Cr, Cu, and Pb in aqueous solutions. We used an...

Effect of lens-to-target distance on the determination of Cr in water by laser-induced breakdown spectroscopy and electro-deposition method

2021 ◽  
Author(s):  
Qiuyun Wang ◽  
Ting Ge ◽  
Yitong Liu ◽  
Anmin Chen ◽  
Suyu Li ◽  
...  
Keyword(s):  
Target Distance ◽  
Laser Induced Breakdown Spectroscopy ◽  
Deposition Method ◽  
Electro Deposition ◽  
Breakdown Spectroscopy ◽  
Laser Induced Breakdown

This paper studied the effect of lens-to-target distance (LTTD) on the determination of Cr in water by laser-induced breakdown spectroscopy and electro-deposition (ED) method. First, the metal ED method realized...

scholarly journals Quantitative Determination of Cd in Soil Using Laser-Induced Breakdown Spectroscopy in Air and Ar Conditions

Molecules ◽  
2018 ◽  
Vol 23 (10) ◽  
pp. 2492 ◽  
Author(s):  
Xiaodan Liu ◽  
Fei Liu ◽  
Weihao Huang ◽  
Jiyu Peng ◽  
Tingting Shen ◽  
...  
Keyword(s):  
Heavy Metal ◽  
Least Squares ◽  
Three Dimensional ◽  
Accurate Method ◽  
Laser Induced Breakdown Spectroscopy ◽  
Quantitative Detection ◽  
Support Vector ◽  
Least Squares Regression ◽  
Breakdown Spectroscopy ◽  
Laser Induced Breakdown

Rapid detection of Cd content in soil is beneficial to the prevention of soil heavy metal pollution. In this study, we aimed at exploring the rapid quantitative detection ability of laser- induced breakdown spectroscopy (LIBS) under the conditions of air and Ar for Cd in soil, and finding a fast and accurate method for quantitative detection of heavy metal elements in soil. Spectral intensity of Cd and system performance under air and Ar conditions were analyzed and compared. The univariate model and multivariate models of partial least-squares regression (PLSR) and least-squares support vector machine (LS-SVM) of Cd under the air and Ar conditions were built, and the LS-SVM model under the Ar condition obtained the best performance. In addition, the principle of influence of Ar on LIBS detection was investigated by analyzing the three-dimensional profile of the ablation crater. The overall results indicated that LIBS combined with LS-SVM under the Ar condition could be a useful tool for the accurate quantitative detection of Cd in soil and could provide reference for environmental monitoring.

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