Flow injection determination of boron, copper, molybdenum, tungsten and zinc in organic matrices with direct current plasma optical emission spectrometry |
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| Authors: | M. C. Brennan and G. Svehla |
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| Affiliation: | (1) Department of Chemistry, University College, Cork and Loctite (Ireland) Ltd, Dublin, Ireland;(2) Department of Chemistry, University College, Cork, Ireland |
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| Abstract: | Summary Flow injection has been applied for organic matrices in direct current plasma atomic emission spectroscopy and a method is described that allows the introduction of 600  l test solution through a loop into a rapidly flowing carrier liquid leading to the nebuliser. The effects of tube length, flow rate, loop size, viscosity and slit width on the analytical signal were first studied, using ethanol as the carrier liquid. This was followed by comparing other carrier liquids and solvents and the procedures were optimised. Limits of detection (in ng/cm3) are as follows: B: 21;Cu: 14; Mo: 28; W: 120 and Zn: 20; these are 5–7 times higher than those obtainable by static methods. A comparison between evaluation through peak height and peak area is also presented.
Fließinjektions-Bestimmung von B, Cu, Mo, W und Zn in organischen Matrices mit Gleichstom-Plasma-optischer Emissionsspektrometrie
Dedicated to Prof. G. Tölg on the occasion of his 60th birthday |
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