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The importance of post analysis data processing in ICP-AES calibration adjustment and multi-lines approaches

Abstract : This study presents post-analysis data processing that can be used in Inductively Coupled Plasma-Atomic Emission Spectrometry (ICP-AES). Two complementary methods were developped the optimisation of the calibration curve and the use of the Total Sum model. In order to work on a Certified Reference Material, the CETAMA EQRAIN 22 solution was used. First, the effect of the computation model used was evaluated. The Total Sum model was developped with two approaches a classical weighted mean and the excess variance weighted mean. Results show a decrease of about a factor of 4 for iron, and 2 for arsenic and palladium on uncertainties. Then, the effect of the calibration solution on both result uncertainties and method detection limits was studied . It shows that using the appropriate calibration can reduce them down by a factor of 10. Such results lead to a total gain on detection limits of about a factor of 30.
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https://hal-cea.archives-ouvertes.fr/cea-02339995
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Submitted on : Wednesday, October 30, 2019 - 3:54:14 PM
Last modification on : Tuesday, April 28, 2020 - 11:28:13 AM

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S. Baghdadi, M. Crozet, S. Gracia, Jl. Dautheribes, C. Rivier. The importance of post analysis data processing in ICP-AES calibration adjustment and multi-lines approaches. Journal of Analytical Atomic Spectrometry, Royal Society of Chemistry, 2018, ⟨10.1039/C8JA00214B⟩. ⟨cea-02339995⟩

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