| MACHÁT, Jiří, Vítězslav OTRUBA and Viktor KANICKÝ. Spectral and non-spectral interferences in determination of selenium by inductively coupled plasma atomic emission spectrometry. Journal of analytical atomic spectrometry. Cambridge: Royal Society of Chemistry, 2002, vol. 17, No 9, p. 1096-1102. ISSN 0267-9477. |
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@article{405747,
author = {Machát, Jiří and Otruba, Vítězslav and Kanický, Viktor},
article_location = {Cambridge},
article_number = {9},
keywords = {Inductively coupled plasma; atomic emission spectrometry; selenium; spectral interferences; non-spectral interferences.},
language = {eng},
issn = {0267-9477},
journal = {Journal of analytical atomic spectrometry},
title = {Spectral and non-spectral interferences in determination of selenium by inductively coupled plasma atomic emission spectrometry},
volume = {17},
year = {2002}
}
TY - JOUR
ID - 405747
AU - Machát, Jiří - Otruba, Vítězslav - Kanický, Viktor
PY - 2002
TI - Spectral and non-spectral interferences in determination of selenium by inductively coupled plasma atomic emission spectrometry
JF - Journal of analytical atomic spectrometry
VL - 17
IS - 9
SP - 1096
EP - 1096
PB - Royal Society of Chemistry
SN - 02679477
KW - Inductively coupled plasma
KW - atomic emission spectrometry
KW - selenium
KW - spectral interferences
KW - non-spectral interferences.
N2 - Spectral and non-spectral interferences observed at the determination of selenium by ICP-OES were investigated in this study. The identity of the carbon-induced emission peak that interferes on the Se 196.090 nm analytical line has been revised. It has been found that this peak is not a part of a CN band but it belongs most likely to a spectral band emitted by CO molecule. Non-spectral interferences of matrix elements C, S, P and Br consisting in the enhancement of selenium emission have been found. Concentration dependences of these matrix effects were measured in the range of 0.5 - 20 g.l-1 of matrix element and 0.1 - 100 mg.l-1 of Se. No enhancement of the Mg I 285.213 nm line was observed when the influence of these matrix elements on magnesium was monitored for comparison at the same time. The enhancement of selenium emission was about 50% in the most significant case (sulfur 10 g.L-1). Similar effect was observed when gaseous compounds of C and S were introduced into the ICP. Mechanism of this matrix effect was studied and partially clarified as probably related to ionization of matrix elements.
ER -
MACHÁT, Jiří, Vítězslav OTRUBA and Viktor KANICKÝ. Spectral and non-spectral interferences in determination of selenium by inductively coupled plasma atomic emission spectrometry. \textit{Journal of analytical atomic spectrometry}. Cambridge: Royal Society of Chemistry, 2002, vol.~17, No~9, p.~1096-1102. ISSN~0267-9477.
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