Ultra-trace metallic element detection in liquid samples using laser induced breakdown spectroscopy based on matrix conversion and crosslinked PVA polymer membrane

2016 ◽  
Vol 31 (8) ◽  
pp. 1622-1630 ◽  
Author(s):  
Qingyu Lin ◽  
Xiaodan Han ◽  
Jie Wang ◽  
Zhimei Wei ◽  
Kunping Liu ◽  
...  
Keyword(s):  
Laser Induced Breakdown Spectroscopy ◽  
Metallic Elements ◽  
Breakdown Spectroscopy ◽  
Liquid Samples ◽  
Metallic Element ◽  
Laser Induced Breakdown ◽  
Ultra Trace ◽  
Trace Metallic Element ◽  
Matrix Conversion ◽  
Sensitive Method

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).

Metal-chelate induced nanoparticle aggregation enhanced laser-induced breakdown spectroscopy for ultra-sensitive detection of trace metal ions in liquid samples

2020 ◽  
Vol 35 (1) ◽  
pp. 188-197 ◽  
Author(s):  
Xiaojiao Liu ◽  
Qingyu Lin ◽  
Yonghui Tian ◽  
Wenlong Liao ◽  
Tao Yang ◽  
...  
Keyword(s):  
Trace Metal ◽  
Metal Ions ◽  
Metal Chelate ◽  
Laser Induced Breakdown Spectroscopy ◽  
Nanoparticle Aggregation ◽  
Trace Metal Ions ◽  
Breakdown Spectroscopy ◽  
Liquid Samples ◽  
Laser Induced Breakdown ◽  
Matrix Conversion

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).

A hydrogel-based solidification method for the direct analysis of liquid samples by laser-induced breakdown spectroscopy

2017 ◽  
Vol 32 (7) ◽  
pp. 1412-1419 ◽  
Author(s):  
Qingyu Lin ◽  
Fang Bian ◽  
Zhimei Wei ◽  
Shuai Wang ◽  
Yixiang Duan
Keyword(s):  
Direct Method ◽  
Direct Analysis ◽  
Laser Induced Breakdown Spectroscopy ◽  
Metallic Elements ◽  
Breakdown Spectroscopy ◽  
Liquid Samples ◽  
Laser Induced Breakdown

A simple, fast, and direct method based on hydrogel-based solidification technique has been developed for determining metallic elements in liquid samples using laser-induced breakdown spectroscopy (LIBS).

Detection of Metallic Elements in Lubricating Oil by Substrate-Assisted Laser-Induced Breakdown Spectroscopy

2019 ◽  
Vol 46 (7) ◽  
pp. 0711002
Author(s):  
郑培超 Peichao Zheng ◽  
谭癸宁 Guining Tan ◽  
王金梅 Jinmei Wang ◽  
赵怀冬 Huaidong Zhao ◽  
刘冉宁 Ranning Liu
Keyword(s):  
Lubricating Oil ◽  
Laser Induced Breakdown Spectroscopy ◽  
Metallic Elements ◽  
Breakdown Spectroscopy ◽  
Laser Induced Breakdown

Nanoparticle-assisted metal–organic framework (MOF) enhanced laser-induced breakdown spectroscopy for the detection of heavy metal ions in liquid samples

2021 ◽  
Vol 36 (10) ◽  
pp. 2173-2184
Author(s):  
Xiaojiao Liu ◽  
Jiao Liu ◽  
Qingyu Lin ◽  
Wenlong Liao ◽  
Tao Yang ◽  
...  
Keyword(s):  
Heavy Metal Ions ◽  
Metal Organic Framework ◽  
Laser Induced Breakdown Spectroscopy ◽  
Practical Applications ◽  
Breakdown Spectroscopy ◽  
Liquid Samples ◽  
Laser Induced Breakdown ◽  
Plasma Quenching ◽  
Metal Organic ◽  
Low Sensitivity

In recent years, the low sensitivity caused by plasma quenching has restricted the development of LIBS technology in practical applications.

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.

Evaluation of an Isolated Droplet Sample Introduction System for Laser-Induced Breakdown Spectroscopy

1988 ◽  
Vol 42 (5) ◽  
pp. 741-746 ◽  
Author(s):  
H. A. Archontaki ◽  
S. R. Crouch
Keyword(s):  
Sample Introduction ◽  
Droplet Radius ◽  
Laser Induced Breakdown Spectroscopy ◽  
Droplet Generator ◽  
Breakdown Spectroscopy ◽  
Liquid Samples ◽  
Sample Introduction System ◽  
Laser Induced Breakdown ◽  
Droplet Production ◽  
Production Frequency

An isolated droplet generator (IDG) has been used as a novel solution sample introduction system for laser-induced breakdown spectroscopy (LIBS). The IDG converts liquid samples to equally-spaced, uniform-sized droplets. The droplets are introduced into the region where a high-powered Nd:YAG laser beam is focused. The resulting analyte emission is spectrally and temporally resolved. The dependence of analyte emission intensity on several parameters (droplet radius, droplet production frequency, etc.) is examined. A flow injection analysis (FIA) manifold has been used to introduce samples to the IDG for quantitative analysis. Performance characteristics of the FIA/IDG/LIBS method are given. Calibration curves linear over 3 orders of magnitude have been obtained for several elements. Detection limits for solutions with the FIA/IDG/ LIBS system are in the low ppm range.

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