An advanced spectroscopic approach (LIBS in combination with AAS): a steadfast means to probe the elemental composition of monosodium glutamate
文献类型：期刊论文
| 作者 | Rehan,Imran4; Rehan,Kamran1,2,4; Khan,M Zubair4; Farooq,Zahid3; Haq,S U5; Sultana,Sabiha6; Rahman,M Ur4; Mehmood,Faisal4 |
| 刊名 | Laser Physics
 |
| 出版日期 | 2019-06-04 |
| 卷号 | 29期号:7 |
| 关键词 | laser-induced breakdown spectroscopy (LIBS) food security edible analysis trace element analysis atomic absorption spectroscopy |
| ISSN号 | 1054-660X |
| DOI | 10.1088/1555-6611/ab189c |
| 英文摘要 | Abstract The elemental composition of monosodium glutamate (MSG) was probed by engaging a laser-induced breakdown spectroscopy (LIBS) analytical technique. The LIBS spectra of MSG were acquired in air pressure with an appropriate detector (LIBS2000??+??, Ocean Optics) with an optical resolution of ~0.06?nm in the spectral range from 220 to 720?nm. Analyses of the acquired LIBS spectra revealed the presence of Ag, Ca, Mg, S and Na in the sample. To maximize the signal to noise ratio in the resulting LIBS spectra, the experimental parameters, such as pulse energy and gate delay, were optimized. The accomplishment of local thermodynamic equilibrium supposition was confirmed by the McWhirter’s criterion and in view of the relaxation time, as well as the diffusion length of the atoms in the plasma. For the determination of relative concentrations of detected elements in MSG, we used three LIBS-based approaches, i.e. by setting the concentration of Na as the calibration, by setting the sum of all concentrations as the calibration and by the calibration curve method. The same sample was also subjected to the more standard analytical tool of atomic absorption spectroscopy, and its results were cross-compared with the findings of LIBS to confirm its validity. It was highly encouraging to find that both results were in sound agreement. |
| 语种 | 英语 |
| WOS记录号 | IOP:1054-660X-29-7-AB189C |
| 出版者 | IOP Publishing |
| 源URL | [http://ir.wipm.ac.cn/handle/112942/14387]  |
| 专题 | 中国科学院武汉物理与数学研究所 |
| 作者单位 | 1.State Key Laboratory of Magnetic Resonance and Atomic and Molecular Physics, Wuhan Institute of Physics and Mathematics, Chinese Academy of Sciences, Wuhan 430071, People’s Republic of China 2.School of Physics, University of the Chinese Academy of Sciences, Beijing, People’s Republic of China 3.Department of Physics, University of Education Lahore, Faisalabad Campus, Pakistan 4.Department of Applied Physics, Federal Urdu University of Arts, Science and Technology, Islamabad 44000, Pakistan 5.National Institute of Lasers and Optronics (NILOP), PO Box 45650, Nilore, Islamabad, Pakistan 6.Department of Chemistry, Islamia College University, Peshawar 25120, Pakistan |
| 推荐引用方式 GB/T 7714 | Rehan,Imran,Rehan,Kamran,Khan,M Zubair,et al. An advanced spectroscopic approach (LIBS in combination with AAS): a steadfast means to probe the elemental composition of monosodium glutamate[J]. Laser Physics,2019,29(7). |
| APA | Rehan,Imran.,Rehan,Kamran.,Khan,M Zubair.,Farooq,Zahid.,Haq,S U.,...&Mehmood,Faisal.(2019).An advanced spectroscopic approach (LIBS in combination with AAS): a steadfast means to probe the elemental composition of monosodium glutamate.Laser Physics,29(7). |
| MLA | Rehan,Imran,et al."An advanced spectroscopic approach (LIBS in combination with AAS): a steadfast means to probe the elemental composition of monosodium glutamate".Laser Physics 29.7(2019). |
入库方式： OAI收割
来源：武汉物理与数学研究所
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