Skip to main content

Spectral Background Intensity in dc Arcs as a Reference in Quantitative Analysis

Buy Article:

$29.00 plus tax (Refund Policy)


The spectral relationships of background radiation and sample composition have been studied for synthetic glasses (2500–3500 Å) and sulfates of alkaline earths (2900–4700 Å) in gas-stabilized dc arcs (15–28 A). The influence of lithium metaborate as a spectrochemical buffer on background radiation and on evaporation of the alkaline earths has been examined. This buffer was found to improve the reproducibility of line intensities. The spectral distribution of the relative background intensity has been determined with the aid of the standard radiation of the carbon anode crater and compared with other authors' results. Electron recombination and molecule continua substantially contribute to continuous radiation. The background intensity was found to be at least as good a reference as an internal standard, particularly because it is applicable for quite a wide spectral range.

Keywords: Buffer; Direct current arc; Evaporation; Spectral-background radiation

Document Type: Research Article


Affiliations: Forschungsstelle für Geochemie, Technische Universität München, 21, Arcisstrasse, 8 München 2, Germany

Publication date: September 1, 1971

More about this publication?

Access Key

Free Content
Free content
New Content
New content
Open Access Content
Open access content
Subscribed Content
Subscribed content
Free Trial Content
Free trial content
Cookie Policy
Cookie Policy
ingentaconnect website makes use of cookies so as to keep track of data that you have filled in. I am Happy with this Find out more
Real Time Web Analytics