Towards the reduction of matrix effects in inductively coupled plasma optical emission spectrometry: an argon–nitrogen–hydrogen mixed-gas plasma for the analysis of geological and environmental samples

2017 ◽  
Vol 32 (9) ◽  
pp. 1688-1696 ◽  
Author(s):  
Yoseif Makonnen ◽  
William R. MacFarlane ◽  
Majdi L. Geagea ◽  
Diane Beauchemin

A robust Ar–N2–H2plasma enables accurate multielemental analysis of geological and environmental samples without matrix-matching or internal standardization.

2019 ◽  
Vol 34 (5) ◽  
pp. 891-898 ◽  
Author(s):  
Guilherme Luiz Scheffler ◽  
Dirce Pozebon ◽  
Diane Beauchemin

Adding nitrogen to the plasma gas in ICPOES significantly improves sensitivity and limit of detection for solid sampling ETV.


2014 ◽  
Vol 6 (16) ◽  
pp. 6170-6182 ◽  
Author(s):  
G. L. Scheffler ◽  
D. Pozebon

This review deals with mixed gas Ar–N2 plasmas, highlighting advantages, limitations and applications of them in inductively coupled plasma optical emission spectrometry (ICP OES), inductively coupled plasma mass spectrometry (ICP-MS) and laser ablation inductively coupled plasma mass spectrometry (LA-ICP-MS) techniques, covering publications in the last three decades.


2016 ◽  
Vol 70 (6) ◽  
Author(s):  
Anna Krejčová ◽  
Tomáš Černohorský ◽  
Lenka Bendakovská

AbstractMatrix effects and practical possibilities of reducing accompanying non-spectral interferences in inductively coupled plasma optical emission spectrometry (ICP-OES) were studied for microconcentric Micromist, concentric and V-groove nebulizers (VGN) coupled with two cyclonic spray chambers of different sizes. The effect of a wide scale of interferents and mixtures thereof in the concentration range of up to 2 mass % (Na, Ca, Ba, La, urea) or up to 20 vol. % (nitric acid) on the analysis of Cd, Cu, K, Mg, Mn, Pb and Zn was investigated in terms of their analytical recovery and Mg(II) 280.27 nm/Mg(I) 285.29 nm line intensity ratio. Recoveries of ionic lines were lower than those of atomic lines (37–102 %) depending on the matrix concentration. The Mg(II)/Mg(I) ratios were found to be 12–15 and they slightly decreased as the matrix load increased. Exceptional behavior of pure La matrix, steeply lowering the recoveries and Mg(II)/Mg(I) ratios was observed. A Micromist nebulizer coupled with a small inner volume spray chamber provided the highest recoveries (94–102 %), lowest matrix effects across the matrix loads and, compared to others, the least significant dependence without worsening of the analytical characteristics (recoveries, signal background ratios and the Mg(II)/Mg(I) ratios) across the studied matrices.


Sign in / Sign up

Export Citation Format

Share Document