Microwave-assisted laser induced breakdown molecular spectroscopy: quantitative chlorine detection

2019 ◽  
Vol 34 (9) ◽  
pp. 1892-1899 ◽  
Author(s):  
M. A. Wakil ◽  
Zeyad T. Alwahabi
Keyword(s):  
Detection Limit ◽  
Molecular Spectroscopy ◽  
Laser Induced Breakdown Spectroscopy ◽  
Breakdown Spectroscopy ◽  
Microwave Assisted ◽  
Laser Induced Breakdown

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

Detection of Metals in the Environment Using a Portable Laser-Induced Breakdown Spectroscopy Instrument

1996 ◽  
Vol 50 (2) ◽  
pp. 222-233 ◽  
Author(s):  
Karen Y. Yamamoto ◽  
David A. Cremers ◽  
Monty J. Ferris ◽  
Leeann E. Foster
Keyword(s):  
Detection Limit ◽  
Fiber Optic ◽  
Laser Induced Breakdown Spectroscopy ◽  
Portable Instrument ◽  
Fiber Optic Cable ◽  
Breakdown Spectroscopy ◽  
Ccd Detector ◽  
Sampling Probe ◽  
Laser Induced Breakdown ◽  
Spectrally Resolved

A portable instrument, based on laser-induced breakdown spectroscopy (LIBS), has been developed for the detection of metal contaminants on surfaces. The instrument has a weight of 14.6 kg, fits completely into a small suitcase (46 × 33 × 24 cm), and operates from 115 V ac. The instrument consists of a sampling probe connected to the main analysis unit by electrical and optical cabling. The hand-held probe contains a small laser to generate laser sparks on a surface and a fiber-optic cable to collect the spark light. The collected light is spectrally resolved and detected with the use of a compact spectrograph/CCD detector system. The instrument has been evaluated for the analysis of metals in the environment: Ba, Be, Pb, and Sr in soils; Pb in paint; and Be and Pb particles collected on filters. Detection limits in ppm for metals in soils were 265 (Ba), 9.3 (Be), 298 (Pb), and 42 (Sr). The detection limit for Pb in paint was 0.8% (8000 ppm), corresponding to 0.052 mg/cm2. The higher limit obtained for Pb in paint is attributed to the use of the 220.35-nm Pb(II) line instead of the stronger 405.78-nm Pb(I) line used for soils. Spectral interferences prevented use of the 405.78-nm line to determine Pb in paint. The surface detection limit for Be particles on filters was dependent on particle size and ranged from 21 to 63 ng/cm2. The detection limit for Pb particles on filters was 5.6 μg/cm2.

Lithium ion detection in liquid with low detection limit by laser-induced breakdown spectroscopy

2019 ◽  
Vol 58 (2) ◽  
pp. 422 ◽  
Author(s):  
Yage He ◽  
Xianshuang Wang ◽  
Shuai Guo ◽  
Angze Li ◽  
Xiangjun Xu ◽  
...  
Keyword(s):  
Detection Limit ◽  
Lithium Ion ◽  
Laser Induced Breakdown Spectroscopy ◽  
Ion Detection ◽  
Breakdown Spectroscopy ◽  
Low Detection Limit ◽  
Laser Induced Breakdown

Enhancement of intensity in microwave-assisted laser-induced breakdown spectroscopy for remote analysis of nuclear fuel recycling

2014 ◽  
Vol 29 (5) ◽  
pp. 886-892 ◽  
Author(s):  
Motonobu Tampo ◽  
Masabumi Miyabe ◽  
Katsuaki Akaoka ◽  
Masaki Oba ◽  
Hironori Ohba ◽  
...  
Keyword(s):  
Laser Ablation ◽  
Nuclear Fuel ◽  
Emission Intensity ◽  
Ablation Plume ◽  
Wire Antenna ◽  
Laser Induced Breakdown Spectroscopy ◽  
Breakdown Spectroscopy ◽  
Microwave Assisted ◽  
Laser Induced Breakdown ◽  
Remote Analysis

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

Determination of Uranium in Solution Using Laser-Induced Breakdown Spectroscopy

1987 ◽  
Vol 41 (6) ◽  
pp. 1042-1048 ◽  
Author(s):  
Joseph R. Wachter ◽  
David A. Cremers
Keyword(s):  
Detection Limit ◽  
Laser Induced Breakdown Spectroscopy ◽  
Breakdown Spectroscopy ◽  
Experimental Parameters ◽  
Nuclear Fuel Reprocessing ◽  
Laser Induced Breakdown ◽  
Photodiode Array ◽  
Spectrally Resolved ◽  
Fuel Reprocessing

Laser-induced breakdown spectroscopy was used to determine uranium in solution for possible application to process control in nuclear fuel reprocessing facilities. Pulses from a Nd: YAG laser were focused on the surfaces of the liquids in order to generate the sparks. The spark light was spectrally resolved and detected with the use of a time-gated photodiode array. The detection limit for uranium in 4 molar nitric acid was 0.1 g/L. Measurement precisions were 1–2% for a 4.2-g/L solution with the use of 1600 laser sparks, corresponding to a measurement time of about three minutes. A calibration curve was prepared that spanned uranium concentrations from 0.1 to 300 g/L. The effects of some experimental parameters on the analysis are discussed.

scholarly journals Multielemental self-absorption reduction in laser-induced breakdown spectroscopy by using microwave-assisted excitation

2018 ◽  
Vol 26 (9) ◽  
pp. 12121 ◽  
Author(s):  
Yun Tang ◽  
Jiaming Li ◽  
Zhongqi Hao ◽  
Shisong Tang ◽  
Zhihao Zhu ◽  
...  
Keyword(s):  
Laser Induced Breakdown Spectroscopy ◽  
Breakdown Spectroscopy ◽  
Microwave Assisted ◽  
Laser Induced Breakdown
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