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Title: Determination of elemental composition of coffee using UV-pulsed laser induced breakdown spectroscopy

Abstract

A detection system based on laser induced breakdown spectroscopy (LIBS) was built using 266 nm wavelength pulsed laser from the fourth harmonic of Nd:YAG laser, 500 mm spectrograph and gated ICCD camera with built-in delay generator. The LIBS system was used to study the elemental composition in coffee available in the local market of Saudi Arabia for the detection of elements in coffee samples. The LIBS spectrum of coffee sample revealed the presence magnesium, calcium, aluminum, copper, sodium, barium, bromine, cobalt, chromium, cerium manganese and molybdenum. Atomic transition line of sodium is used to study the parametric dependence of LIBS signal. The study of the dependence of LIBS signal on the laser pulse energy is proven to be linear and the dependence of LIBS signal on the time delay between the excitation and data acquisition showed a typical increase, a peak value and a decrease with the optimum excitation – acquisition delay at 400 ns.

Authors:
; ;  [1]
  1. Laser Research Group, Physics Department, King Fahd University of Petroleum and Minerals, P.O Box 5047, Dhahran 31261 (Saudi Arabia)
Publication Date:
OSTI Identifier:
22609050
Resource Type:
Journal Article
Journal Name:
AIP Conference Proceedings
Additional Journal Information:
Journal Volume: 1742; Journal Issue: 1; Conference: SIMFP2016: 5. Saudi international meeting on frontiers of physics, Gizan (Saudi Arabia), 16-18 Feb 2016; Other Information: (c) 2016 Author(s); Country of input: International Atomic Energy Agency (IAEA); Journal ID: ISSN 0094-243X
Country of Publication:
United States
Language:
English
Subject:
75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; ALUMINIUM; BARIUM; BEVERAGES; BROMINE; CALCIUM; CERIUM; CHROMIUM; COBALT; COPPER; DATA ACQUISITION; DETECTION; EXCITATION; MAGNESIUM; MANGANESE; MOLYBDENUM; NEODYMIUM LASERS; SODIUM; SPECTRA; SPECTROSCOPY; TIME DELAY

Citation Formats

Gondal, M. A., E-mail: magondal@kfupm.edu.sa, Baig, Umair, Dastageer, M. A., and Sarwar, Mohsin. Determination of elemental composition of coffee using UV-pulsed laser induced breakdown spectroscopy. United States: N. p., 2016. Web. doi:10.1063/1.4953128.
Gondal, M. A., E-mail: magondal@kfupm.edu.sa, Baig, Umair, Dastageer, M. A., & Sarwar, Mohsin. Determination of elemental composition of coffee using UV-pulsed laser induced breakdown spectroscopy. United States. https://doi.org/10.1063/1.4953128
Gondal, M. A., E-mail: magondal@kfupm.edu.sa, Baig, Umair, Dastageer, M. A., and Sarwar, Mohsin. 2016. "Determination of elemental composition of coffee using UV-pulsed laser induced breakdown spectroscopy". United States. https://doi.org/10.1063/1.4953128.
@article{osti_22609050,
title = {Determination of elemental composition of coffee using UV-pulsed laser induced breakdown spectroscopy},
author = {Gondal, M. A., E-mail: magondal@kfupm.edu.sa and Baig, Umair and Dastageer, M. A. and Sarwar, Mohsin},
abstractNote = {A detection system based on laser induced breakdown spectroscopy (LIBS) was built using 266 nm wavelength pulsed laser from the fourth harmonic of Nd:YAG laser, 500 mm spectrograph and gated ICCD camera with built-in delay generator. The LIBS system was used to study the elemental composition in coffee available in the local market of Saudi Arabia for the detection of elements in coffee samples. The LIBS spectrum of coffee sample revealed the presence magnesium, calcium, aluminum, copper, sodium, barium, bromine, cobalt, chromium, cerium manganese and molybdenum. Atomic transition line of sodium is used to study the parametric dependence of LIBS signal. The study of the dependence of LIBS signal on the laser pulse energy is proven to be linear and the dependence of LIBS signal on the time delay between the excitation and data acquisition showed a typical increase, a peak value and a decrease with the optimum excitation – acquisition delay at 400 ns.},
doi = {10.1063/1.4953128},
url = {https://www.osti.gov/biblio/22609050}, journal = {AIP Conference Proceedings},
issn = {0094-243X},
number = 1,
volume = 1742,
place = {United States},
year = {Fri Jun 10 00:00:00 EDT 2016},
month = {Fri Jun 10 00:00:00 EDT 2016}
}