Identification of nitro-compounds with LIBS |
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| Authors: | S Rai AK Rai SN Thakur |
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| Institution: | 1. Laser Spectroscopy Research Laboratory, Department of Physics, Allahabad University, Allahabad, 211002, India
2. Department of Physics, Banaras Hindu University, Varanasi, 221005, India
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| Abstract: | Laser-induced breakdown spectroscopy (LIBS) is applied to characterize the organic compounds 4-nitroaniline and 4-nitrotoluene by measuring the intensity of atomic lines. The hypothesis of local thermodynamic equilibrium (LTE) is verified by comparing the measured value of electron density in the laser-induced plasma with its lower limit, for which LTE holds good. The present study infers that the O/N intensity ratio is a unique parameter to discriminate each nitro-compound from the explosives. |
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