MACHÁT, Jiří, Vítězslav OTRUBA a 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, roč. 17, č. 9, s. 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 a 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, roč.~17, č.~9, s.~1096-1102. ISSN~0267-9477.
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