On the use of line intensity ratios and power adjustments to control matrix effects in inductively coupled plasma optical emission spectrometry

1999 ◽  
Vol 14 (5) ◽  
pp. 831-838 ◽  
Author(s):  
E. H. van Veen ◽  
M. T. C. de Loos-Vollebregt
Keyword(s):  
Line Intensity ◽  
Inductively Coupled Plasma ◽  
Matrix Effects ◽  
Optical Emission ◽  
Optical Emission Spectrometry ◽  
Emission Spectrometry ◽  
Inductively Coupled ◽  
Plasma Optical Emission Spectrometry ◽  
Control Matrix ◽  
Intensity Ratios

A practical approach to non-spectral interferences elimination in inductively coupled plasma optical emission spectrometry

2016 ◽  
Vol 70 (6) ◽  
Author(s):  
Anna Krejčová ◽  
Tomáš Černohorský ◽  
Lenka Bendakovská
Keyword(s):  
Inductively Coupled Plasma ◽  
Matrix Effects ◽  
Optical Emission ◽  
Optical Emission Spectrometry ◽  
Emission Spectrometry ◽  
Spectral Interferences ◽  
Inductively Coupled ◽  
The Matrix ◽  
Plasma Optical Emission Spectrometry ◽  
Matrix Concentration

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.

Determination of Aluminium in Serum, Dialysate Fluid and Water by Inductively Coupled Plasma Optical Emission Spectrometry

1995 ◽  
Vol 32 (2) ◽  
pp. 160-166 ◽  
Author(s):  
T D B Lyon ◽  
C Cunningham ◽  
D J Halls ◽  
J Gibbons ◽  
A Keating ◽  
...  
Keyword(s):  
Inductively Coupled Plasma ◽  
Matrix Effects ◽  
Internal Standard ◽  
Optical Emission ◽  
Optical Emission Spectrometry ◽  
Atomic Spectrometry ◽  
Emission Spectrometry ◽  
Inductively Coupled ◽  
Plasma Optical Emission Spectrometry

Methods for the determination of aluminium in serum, dialysate fluid and water by inductively coupled plasma optical emission spectrometry are described and validated. Aluminium was measured at 167 nm using an argon purged monochromator. Matrix effects in serum and dialysate fluid were overcome by using an yttrium internal standard. Serum was found to have a complicated background in the region of 167 nm: Careful selection of the wavelength used for background correction is therefore a pre-requisite for accurate analysis. The method for serum was validated by comparison with electrothermal atomization atomic spectrometry and the limit of agreement determined to be ±0·3 μmol/L. Routine performance in a quality assessment scheme has been highly satisfactory for a period of 1 year. The method is ideal for fast and accurate monitoring of patients potentially at risk from aluminium toxicity.

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