Signal compensation by the light scattering of sample aerosols in ICP-AES

연평흠; 박용남

doi:10.5806/AST.2012.25.4.223

오늘 하루 그만보기

P-ISSN1225-0163
E-ISSN2288-8985
SCOPUS, ESCI, KCI

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P-ISSN 1225-0163
E-ISSN 2288-8985

e-Submission

Vol.25, No.4

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Signal compensation by the light scattering of sample aerosols in ICP-AES

Analytical Science and Technology / Analytical Science and Technology, (P)1225-0163; (E)2288-8985

2012, v.25 no.4, pp.223-229

https://doi.org/10.5806/AST.2012.25.4.223

& (2012). Signal compensation by the light scattering of sample aerosols in ICP-AES. , 25(4), 223-229, https://doi.org/10.5806/AST.2012.25.4.223

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Abstract

Analytical signal from ICP was compensated by the light scattering of sample aerosols. Reference scattering signal was generated by a He-Ne or diode laser, monitored for the amount of aerosol producing and used for the compensation of analytical signals. The result showed that significant improvement in precision could be achieved for the short-term signal (within 1 minute) from 3.4% to 0.9% RSD in signal and 14.9%to 4.2% for the long-term (10 minutes) for Be, Pb and Co. This method is very useful not only for the pulse type but for continuous type signals especially when a nebulizer is unstable. To improve long-term precision,higher stability is required in the scattering cell and detector as well as the reduction of noise from the line between a nebulizer and plasma.