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Issue 7, 2014
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Compensation of inorganic acid interferences in ICP-OES and ICP-MS using a Flow Blurring® multinebulizer

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Abstract

A new and easy method has been proposed for the compensation of inorganic acid matrix effects in ICP-OES and ICP-MS. The method consists of an on-line standard addition calibration using a Flow Blurring® multinebulizer (FBMN-based system). Experimental conditions of the FBMN-based system are optimized for both ICP-OES and ICP-MS. Under optimized conditions recovery values obtained in the analysis of synthetic acid samples were close to 100% for HNO3 and HCl (with acid concentrations of up to 15% (w/w)) and H2SO4 (up to 10% (w/w) for both plasma-based spectrochemical techniques. The applicability of the proposed method has been evaluated analyzing two whole milk powders, a certified reference material and a commercial product, showing excellent recovery values. Compared with other calibration strategies and experimental setups used, the on-line standard addition calibration using the FBMN-based system is faster, easier to handle and significantly reduces reagent and sample consumption.

Graphical abstract: Compensation of inorganic acid interferences in ICP-OES and ICP-MS using a Flow Blurring® multinebulizer

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Supplementary files

Article information


Submitted
20 Feb 2014
Accepted
26 Mar 2014
First published
26 Mar 2014

J. Anal. At. Spectrom., 2014,29, 1218-1227
Article type
Paper
Author version available

Compensation of inorganic acid interferences in ICP-OES and ICP-MS using a Flow Blurring® multinebulizer

M. Á. Aguirre, L. L. Fialho, J. A. Nóbrega, M. Hidalgo and A. Canals, J. Anal. At. Spectrom., 2014, 29, 1218
DOI: 10.1039/C4JA00079J

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