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- E-ISSN 2288-8985
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- P-ISSN1225-0163
- E-ISSN2288-8985
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Investigation of the optimum condition for the quantitative analysis of Cu sample by Laser induced breakdown spectroscopy
Analytical Science and Technology / Analytical Science and Technology, (P)1225-0163; (E)2288-8985
2009, v.22 no.2, pp.141-147
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(2009). Investigation of the optimum condition for the quantitative analysis of Cu sample by Laser induced breakdown spectroscopy. Analytical Science and Technology, 22(2), 141-147.
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Abstract
A laser induced breakdown spectroscopy (LIBS) measurement was carried out to derive an optimized measurement condition with a high reproducibility and to grow a plasma sphere to 20 ㎜ high under a 600 mtorr vacuum in order to improve an accuracy of measurement. The measurement of the plasma was taken at a 6.0 ㎜ distance, in the direction of a plasma sphere, from a sample. This location belongs to the outer sphere region in the plasma. The calibration curve of ‘Ni’ and ‘Cu’ was acquired by the signal intensity ratio and the atomic ratio for the samples, and linear regression of “Cu” was R²=0.9886, and the linear regression of “Ni” was R²=0.9988. The accuracy of LIBS was improved pre-existence as the measurement error of “Ni” was 0.78%.
- keywords
- LIBS (laser induced breakdown spectroscopy), Quantitative analysis, Atomic spectroscopy, Analytical instruments
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