Ultra-sensitive detection of heavy metal ions in tap water by laser-induced breakdown spectroscopy with the assistance of electrical-deposition

2010 ◽  
Vol 2 (4) ◽  
pp. 408 ◽  
Author(s):  
Fang Zhao ◽  
Zhiming Chen ◽  
Fupeng Zhang ◽  
Runhua Li ◽  
Jianying Zhou
Keyword(s):  
Heavy Metal ◽  
Metal Ions ◽  
Heavy Metal Ions ◽  
Tap Water ◽  
Sensitive Detection ◽  
Laser Induced Breakdown Spectroscopy ◽  
Breakdown Spectroscopy ◽  
Laser Induced Breakdown

scholarly journals Filler-Modified Castor Oil-Based Polyurethane Foam for the Removal of Aqueous Heavy Metals Detected Using Laser-Induced Breakdown Spectroscopy (LIBS) Technique

Polymers ◽  
2020 ◽  
Vol 12 (4) ◽  
pp. 903 ◽  
Author(s):  
M. Iqhrammullah ◽  
Marlina ◽  
R. Hedwig ◽  
I. Karnadi ◽  
K. H. Kurniawan ◽  
...  
Keyword(s):  
Heavy Metal ◽  
Polyurethane Foam ◽  
Castor Oil ◽  
Heavy Metal Ions ◽  
Metal Removal ◽  
Heavy Metal Removal ◽  
Laser Induced Breakdown Spectroscopy ◽  
Breakdown Spectroscopy ◽  
Adsorption Performance ◽  
Laser Induced Breakdown

The use of polymeric material in heavy metal removal from wastewater is trending. Heavy metal removal from wastewater of the industrial process is of utmost importance in green/sustainable manufacturing. Production of absorbent materials from a natural source for industrial wastewater has been on the increase. In this research, polyurethane foam (PUF), an adsorbent used by industries to adsorb heavy metal from wastewater, was prepared from a renewable source. Castor oil-based polyurethane foam (COPUF) was produced and modified for improved adsorption performance using fillers, analyzed with laser-induced breakdown spectroscopy (LIBS). The fillers (zeolite, bentonite, and activated carbon) were added to the COPUF matrix allowing the modification on its surface morphology and charge. The materials were characterized using Fourier-transform infrared (FTIR), scanning electron microscopy (SEM), and thermal gravimetry analysis (TGA), while their adsorption performance was studied by comparing the LIBS spectra. The bentonite-modified COPUF (B/COPUF) gave the highest value of the normalized Pb I (405.7 nm) line intensity (2.3), followed by zeolite-modified COPUF (Z/COPUF) (1.9), and activated carbon-modified COPUF (AC/COPUF) (0.2), which indicates the adsorption performance of Pb2+ on the respective materials. The heavy metal ions’ adsorption on the B/COPUF dominantly resulted from the electrostatic attraction. This study demonstrated the potential use of B/COPUF in adsorption and LIBS quantitative analysis of aqueous heavy metal ions.

Synchronous Detection of Heavy Metal ions in Aqueous Solution by Gold Nanoparticles SurfaceEnhanced Laser-Induced Breakdown Spectroscopy

2021 ◽  
Author(s):  
Yaqian Yao ◽  
Fan He ◽  
Qingyu Lin ◽  
Yonghui Tian ◽  
Tianlong Zhang ◽  
...  
Keyword(s):  
Heavy Metal ◽  
Metal Ion ◽  
Heavy Metal Ions ◽  
Environmental Problem ◽  
Laser Induced Breakdown Spectroscopy ◽  
Synchronous Detection ◽  
Breakdown Spectroscopy ◽  
The World ◽  
Laser Induced Breakdown ◽  
Insufficient Sensitivity

Heavy metal ion-induced water pollution has become a severe environmental problem in the world. Although providing a powerful technique for multi-element detection, laser-induced breakdown spectroscopy (LIBS) suffers from insufficient sensitivity...

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.

The pH effect on the detection of heavy metals in wastewater by laser-induced breakdown spectroscopy coupled with a phase transformation method

2020 ◽  
Vol 35 (1) ◽  
pp. 198-203 ◽  
Author(s):  
Shixiang Ma ◽  
Yun Tang ◽  
Yuyang Ma ◽  
Daming Dong ◽  
Lianbo Guo ◽  
...  
Keyword(s):  
Heavy Metals ◽  
Heavy Metal ◽  
Phase Transformation ◽  
Industrial Wastewater ◽  
Ph Effect ◽  
Transformation Method ◽  
Metal Particles ◽  
Laser Induced Breakdown Spectroscopy ◽  
Breakdown Spectroscopy ◽  
Laser Induced Breakdown

Heavy metal particles in water are mainly derived from acidic industrial wastewater. The pH effect on the detection of toxic metals in wastewater by LIBS-PT method was investigated.

scholarly journals Heavy metal detection in mulberry leaves: Laser-induced breakdown spectroscopy data

Data in Brief ◽  
2020 ◽  
Vol 33 ◽  
pp. 106483
Author(s):  
Liang Yang ◽  
Liuwei Meng ◽  
Huaqi Gao ◽  
Jingyu Wang ◽  
Can Zhao ◽  
...  
Keyword(s):  
Heavy Metal ◽  
Laser Induced Breakdown Spectroscopy ◽  
Spectroscopy Data ◽  
Heavy Metal Detection ◽  
Mulberry Leaves ◽  
Breakdown Spectroscopy ◽  
Metal Detection ◽  
Laser Induced Breakdown

Sensitive detection of iodine by low pressure and short pulse laser-induced breakdown spectroscopy (LIBS)

2014 ◽  
Vol 29 (6) ◽  
pp. 1082-1089 ◽  
Author(s):  
Xiaobo Zhang ◽  
Yoshihiro Deguchi ◽  
Zhenzhen Wang ◽  
Junjie Yan ◽  
Jiping Liu
Keyword(s):  
Pulse Laser ◽  
Short Pulse ◽  
Low Pressure ◽  
Sensitive Detection ◽  
Laser Induced Breakdown Spectroscopy ◽  
Breakdown Spectroscopy ◽  
Short Pulse Laser ◽  
Laser Induced Breakdown ◽  
Detection Characteristics

Iodine in buffer gases of air and N2 was measured under various conditions including different wavelengths, laser powers, pulse widths and pressures to compare the detection characteristics of low pressure and short pulse LIBS.

Sign in / Sign up

Export Citation Format

Share Document