Issue 15, 2014

Attenuation of interference in collision/reaction cell inductively coupled plasma mass spectrometry, using helium and hydrogen as cell gases – application to multi-element analysis of mastic gum

Abstract

A collision/reaction cell ICP-MS was used to develop a method for the multi-element determination of Na, Mg, Al, K, Ca, Ti, V, Cr, Mn, Fe, Co, Ni, Cu, Zn, As, Se, Sr, Nb, Mo, Ag, Cd, Sb, Cs, Ba, Hg and Pb in mastic gum. Evaluation of helium and hydrogen as cell gases took place and their ability to reduce several types of interference arising from a Si, S, P, C, Cl and F based matrix was investigated. Likewise, much polyatomic interference was attenuated efficiently by the effect of kinetic energy discrimination. Moreover, a study of stopping curve measurements was performed. Thus, measurements of the ion loss caused by collisions, reaction cross-sections given by the Langevin–Gioumousis–Stevenson model and collision cross-sections were carried out. The method was validated and the calculated recoveries for all elements (at three concentration levels) were ranged between 92.6% (Ti) and 105% (Ag) and the relative standard deviation (%RSD) of reproducibility was ranged between 1.6% (Co) and 9.9% (Ca). The limits of detection ranged between 0.11 ng g−1 (Cs) and 1.12 μg g−1 (Ca). The trueness of the method was also checked by the analysis of a standard reference material (SRM, 1573a tomato leaves).

Graphical abstract: Attenuation of interference in collision/reaction cell inductively coupled plasma mass spectrometry, using helium and hydrogen as cell gases – application to multi-element analysis of mastic gum

Supplementary files

Article information

Article type
Paper
Submitted
24 Feb 2014
Accepted
15 May 2014
First published
19 May 2014

Anal. Methods, 2014,6, 5899-5908

Author version available

Attenuation of interference in collision/reaction cell inductively coupled plasma mass spectrometry, using helium and hydrogen as cell gases – application to multi-element analysis of mastic gum

N. I. Rousis, I. N. Pasias and N. S. Thomaidis, Anal. Methods, 2014, 6, 5899 DOI: 10.1039/C4AY00452C

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