scholarly journals Matrix effects of carbon and bromine in inductively coupled plasma optical emission spectrometry

2015 ◽  
Vol 30 (10) ◽  
pp. 2223-2234 ◽  
Author(s):  
Helmar Wiltsche ◽  
Monika Winkler ◽  
Paul Tirk

In inductively coupled plasma based techniques the signal enhancing effect of carbon on high ionization potential elements is not only caused by changes in the nebulization efficiency and charge exchange reactions, but also by increased plasma power density and the state of matter of the introduced carbon species.

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.


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.


2020 ◽  
Vol 35 (4) ◽  
pp. 679-692 ◽  
Author(s):  
Jake A. Carter ◽  
John T. Sloop ◽  
Tina Harville ◽  
Bradley T. Jones ◽  
George L. Donati

Plasma species of Ar, H and O are monitored and used for modeling and for correcting signal bias caused by high concentrations of easily ionizable elements in ICP OES.


Sign in / Sign up

Export Citation Format

Share Document