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Effects from easily ionized elements on silver analyte in atmospheric pressure parallel plate capacitively coupled plasma (PP-CCP)

TitleEffects from easily ionized elements on silver analyte in atmospheric pressure parallel plate capacitively coupled plasma (PP-CCP)
Publication TypeJournal Article
Year of Publication2000
AuthorsRahman, MM, Blades, MW
JournalSpectrochimica Acta Part B-Atomic Spectroscopy
Volume55
Pagination327-338
Date PublishedApr
Type of ArticleArticle
ISBN Number0584-8547
KeywordsABSORPTION SPECTROMETRY, ATOMIC EMISSION-SPECTROMETRY, ATOMIZATION, capacitively coupled plasma, EASILY, EASILY IONIZED ELEMENT, electron energy distribution function, INTERFERENCE, IONIZABLE ELEMENT, METAL NITRATES, MICROWAVE-INDUCED PLASMA, plasma induced dissociation, SAMPLE INTRODUCTION, SODIUM, THERMAL-DECOMPOSITION
Abstract

The effect of easily ionized element (EIE) matrices on analyte emission, from a parallel plate capacitively coupled plasma (PP-CCP), has been studied. NaCl and NaNO3 were used as typical matrices and the interference on Ag emission was studied as a function of the amount of EIE and applied plasma forward power. Compared with the emission signal without the presence of matrices, the presence of either NaCl or NaNO3 as a concomitant in the sample, causes an interference effect by both enhancing, and decreasing, the emission intensity depending on the amount of added EIE. The maximum signal interference, signal enhancement, was observed at 125 W plasma forward power. The degree of enhancement from an EIE decreases with increasing forward power switching to a signal depression at a forward power of 250 W. (C) 2000 Elsevier Science B.V. All rights reserved.

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