Issue 10, 2009

Minimization of the effect of silicon chemical form in xylene matrices on ICP-AES performance

Abstract

It has been shown previously that the influence of the silicon chemical form could be minimized in ICP-AES by using high efficiency sample introduction systems. In this work, the effects of two of the most different silicon chemical forms have been minimized in ICP-AES by using near total sample consumption systems. The two tested devices have been a single pass spray chamber equipped with wall heating (heated torch integrated sample introduction system, h-TISIS) and a demountable direct injection high efficiency nebulizer (d-DIHEN). A room temperature TISIS and a cyclonic spray chamber have been taken as the reference systems. Solutions containing silicon as six different compounds in xylene have been prepared and analyzed through ICP-AES. It has been observed that, at low liquid flow rates, the h-TISIS improves the sensitivity and the limits of detection as compared to the d-DIHEN. In contrast, shorter wash-out times are obtained for the d-DIHEN. As regards to the effect of the silicon chemical form, h-TISIS and d-DIHEN have minimized it with respect to a conventional cyclonic spray chamber.

Graphical abstract: Minimization of the effect of silicon chemical form in xylene matrices on ICP-AES performance

Article information

Article type
Paper
Submitted
01 Apr 2009
Accepted
23 Jul 2009
First published
12 Aug 2009

J. Anal. At. Spectrom., 2009,24, 1382-1388

Minimization of the effect of silicon chemical form in xylene matrices on ICP-AES performance

R. Sánchez, J. L. Todolí, C. Lienemann and J. Mermet, J. Anal. At. Spectrom., 2009, 24, 1382 DOI: 10.1039/B906568G

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