Performance evaluation of aser Induced Breakdown Spectroscopy (LIBS) for quantitative analysis of rare earth elements in phosphate glasses

Devangad, Praveen and Unnikrishnan, MK and Nayak, Rajesh and Tamboli, MM and Shameem, Muhammed KM and Santhosh, C and Kumar, Ganesh (2016) Performance evaluation of aser Induced Breakdown Spectroscopy (LIBS) for quantitative analysis of rare earth elements in phosphate glasses. Optical Materials, 52. pp. 32-37. ISSN 0925-3467

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Abstract

In the current study, we have determined the elemental compositions of synthesized rare earth doped phosphate glasses using a laboratory Laser-Induced Breakdown Spectroscopy (LIBS) system. LIBS spectra of this rare earth (samarium (Sm), thulium (Tm) and ytterbium (Yb)) doped glass samples with known composition are recorded using a highly sensitive detector. Major atomic emission lines of Sm, Tm and Yb found in LIBS spectra are reported. By considering the atomic emission line of phosphorous as an internal standard, calibration curves were constructed for all the rare earth concentrations. Very good linear regression coefficient (R2) values were obtained using this technique. Analytical predictive skill of LIBS was studied further using leave-one-out method. Low values of the reported correlation uncertainty between measured LIBS concentration ratio and certified concentration ratio confirms that LIBS technique has great potential for quantitative analysis of rare earth elements in glass matrix.

Item Type: Article
Uncontrolled Keywords: Laser-Induced Breakdown Spectroscopy; rare earth elements; phosphate glass; quantitative analysis.
Subjects: Departments at MU > Atomic Molecular Physics
Depositing User: KMC Library
Date Deposited: 21 Mar 2016 08:52
Last Modified: 21 Mar 2016 08:52
URI: http://eprints.manipal.edu/id/eprint/145594

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