• Optoelectronics Letters
  • Vol. 15, Issue 1, 57 (2019)
Jabbar Abdul1, Akhtar Mahmood1, Ali Arslan1, Mehmood Shaukat1, Iftikhar Sidra1, and Baig Muhmmad Aslam2、*
Author Affiliations
  • 1Department of Physics, Mirpur University of Science and Technology, Mirpur 10250 (AJK), Pakistan
  • 2National Centre for Physics, Islamabad 45320, Pakistan
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    Abstract

    In this paper, we apply laser induce breakdown spectroscopy (LIBS) to determine the elemental composition of dif-ferent parts (root, stem and seed) of the rice plant and determine their weighted concentration using calibration free laser induced breakdown spectroscopy (CF-LIBS) technique. Ca, Fe and K are identified as major elements, while C, Ti, Mg, Si, Li, Ba, Sr, Cr, Na and Al as minor elements. We also detect the H-alpha line of hydrogen in the spectrum and determine the electron number density. The electron number density and its behavior as a function of laser energy, laser wavelength and the detector position are investigated. The plasma temperatures of samples are determined, and the validity of the assumption of the local thermodynamic equilibrium (LTE) is discussed.
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    Abdul Jabbar, Mahmood Akhtar, Arslan Ali, Shaukat Mehmood, Sidra Iftikhar, Muhmmad Aslam Baig. Elemental composition of rice using calibration free la-ser induced breakdown spectroscopy[J]. Optoelectronics Letters, 2019, 15(1): 57
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    Received: Jun. 18, 2018
    Accepted: --
    Published Online: Apr. 11, 2019
    The Author Email: Baig Muhmmad Aslam (baig@qau.edu.pk)