Determination of Major Inorganic Nutrients in Maize Tissues by Calibration-Free Laser Induced Breakdown Spectroscopy,Analytical Letters

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Determination of Major Inorganic Nutrients in Maize Tissues by Calibration-Free Laser Induced Breakdown Spectroscopy
Analytical Letters ( IF 1.6 ) Pub Date : 2019-12-24 , DOI: 10.1080/00032719.2019.1705477
Abdul Jabbar _{1,

2} , Mahmood Akhtar _{1,

2} , Shaukat Mahmood ₁ , Rizwan Ahmed ₂ , Muhammad Aslam Baig ₂

Affiliation

Abstract The quality of the available food is the main issue in the developing countries and maize is one of the commonly used foodstuffs in these countries. Laser-induced breakdown spectroscopy (LIBS) was employed to characterize the presence of the major inorganic nutrients in the maize samples. Each of the samples was shown to contain following elements: K, Ca, Mg, Fe, Na, Si, Li, Sr, Ti, Al, and C while Cr was only detected in the seeds. The electron number density was evaluated by the use of the Stark broadened profile of calcium line and the plasma temperatures have been determined using the Boltzmann plot method. Calibration-free LIBS (CF-LIBS) has been used for the quantitative elemental analysis of the samples. The consistency of the concentrations determined by CF-LIBS was validated using inductively coupled plasma – optical emission spectroscopy (ICP-OES).

更新日期：2019-12-24

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