期刊
SPECTROCHIMICA ACTA PART B-ATOMIC SPECTROSCOPY
卷 136, 期 -, 页码 39-44出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.sab.2017.08.006
关键词
LIBS; Cigarette brands; Elemental composition; Plasma parameters; LA-TOF-mass spectrometry
类别
资金
- Pakistan Academy of Sciences
- Higher Education Commission of Pakistan
We present qualitative and quantitative analysis of the trace elements present in different brands of tobacco available in Pakistan using laser induced breakdown spectroscopy (LIBS) and Laser ablation Time of Flight Mass Spectrometer (LA-TOFMS). The compositional analysis using the calibration free LIBS technique is based on the observed emission spectra of the laser produced plasma plume whereas the elemental composition analysis using IA-TOFMS is based on the mass spectra of the ions produced by laser ablation. The optical emission spectra of these samples contain spectral lines of calcium, magnesium, sodium, potassium, silicon, strontium, barium, lithium and aluminum with varying intensities. The corresponding mass spectra of the elements were detected in LA-TOF-MS with their composition concentration. The analysis of different brands of cigarettes demonstrates that LIBS coupled with a LA-TOF-MS is a powerful technique for the elemental analysis of the trace elements in any solid sample. (C) 2017 Elsevier B.V. All rights reserved.
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