Comparative study of argon and helium plasmas in a TM010 cavity and a surfatron and their use for hydride generation microwave-induced plasma atomic emission spectrometry

Autor:	E. Bulska, Günther Tölg, José A. C. Broekaert, P. Tschöpel
Rok vydání:	1993
Předmět:	Detection limit Argon Hydride Analytical chemistry chemistry.chemical_element Plasma Biochemistry Analytical Chemistry Resonator chemistry Environmental Chemistry Figure of merit Graphite Spectroscopy Helium
Zdroj:	Analytica Chimica Acta. 276:377-384
ISSN:	0003-2670
DOI:	10.1016/0003-2670(93)80408-d
Popis:	Argon and helium microwave-induced plasmas (MIPs) operated in a TM 010 Beenakker resonator and in a surfatron were investigated for the determination of hydride-forming elements. The MIPs in both devices were optimized with elemental mercury vapour. The analytical figures of merit were determined for As, Sb and Se in the case of hydride generation followed by trapping in a hot graphite furnace and subsequent evaporization of the analyte into the plasma. The long-term stability of the plasmas obtained in both devices was found to be very good. With the surfatron the absolute detection limits for the determination of As, Sb and Se (0.1–0.2 ng) were half those with the TM 010 cavity.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::b463352e72afea7ca9bc31b568a89510 https://doi.org/10.1016/0003-2670(93)80408-d Zobrazit plný text záznamu