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Interference Effects of Excess Lithium on the Emission Signal of the Calcium and Strontium Ionic Lines during Inductively Coupled Plasma Emission Spectrometry: Simulation in Terms of the Simplified Collisional Radiative Recombination Rate Model | Abstract
ISSN: 2155-9872

Journal of Analytical & Bioanalytical Techniques
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Research Article

Interference Effects of Excess Lithium on the Emission Signal of the Calcium and Strontium Ionic Lines during Inductively Coupled Plasma Emission Spectrometry: Simulation in Terms of the Simplified Collisional Radiative Recombination Rate Model

Mark Fungayi Zaranyika1* and Courtie Mahamadi2

1Professor, Chemistry Department, University of Zimbabwe, Zimbabwe

2Chemistry Department, Bindura University of Science Education, Zimbabwe

*Corresponding Author:
Mark Fungayi Zaranyika
Chemistry Department
University of Zimbabwe
P. O. Box MP 167 Mount Pleasant
Harare, Zimbabwe
Tel: 263-4-303211Ext.15051
E-mail: [email protected]

Received date: March 31, 2014; Accepted date: April 29, 2014; Published date: May 01, 2014

Citation: Zaranyika MF, Mahamadi C (2014) Interference Effects of Excess Lithium on the Emission Signal of the Calcium and Strontium Ionic Lines during Inductively Coupled Plasma Emission Spectrometry: Simulation in Terms of the Simplified Collisional Radiative Recombination Rate Model. J Anal Bioanal Tech 5:190 doi: 10.4172/2155-9872.1000190

Copyright: © 2014 Zaranyika MF, et al. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.

Abstract

ICP-AES Ca and Sr ion line signals were measured on 0-30 μg/mL Ca and Sr solutions, in the absence and presence of 1000 μg/mL Li as easily ionizable interferent, and the effect of the interferent on analyte calibration curve simulated using a simplified collisional radiative recombination rate model. Close agreement between experiment and theory was obtained for the full range of concentrations studied in the case of SrII, while the theoretical Ca ion line calibration curve exhibited close agreement below 10 μg/mL Ca concentration in the test solution, and a positive deviation of up to 18% from the experimental curve at higher Ca concentrations. The data obtained successfully demonstrates the potential of the simplified collisional radiative recombination rate model for simulating the effects of easily ionizable interferents on high ionization potential analytes.

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