Skip to main content

Characterization of an Interelement Enhancement Effect in a dc Plasma Atomic Emission Spectrometry System

Buy Article:

$29.00 plus tax (Refund Policy)

Abstract:

The enhancement of atomic and ionic emission in a dc plasma due to the addition of easily ionized elements has been studied. The results show that the addition of the concomitants: (1) causes enhancements in both atomic and ionic emission, (2) does not cause significant changes in the electron temperature or the electron population of the plasma excitation zone, (3) results in a downward shift in the rotational temperature of that zone, and (4) does not cause significant changes in the efficiency with which analytical species are delivered to the plasma. These observations indicate that the enhancement effect cannot be readily explained based on plasma temperature increases or the classical ionization repression mechanism. As an alternative, it is suggested that the enhancement may result from increases in the population of metastable argon with coincident increases in excitation via collision with this species. This mechanism is circumstantially supported by the present results but must be regarded as tentative.

Keywords: Atomic emission; Interference effects; Ionic emission

Document Type: Research Article

DOI: http://dx.doi.org/10.1366/0003702804730880

Affiliations: 1: Department of Chemistry, Colorado State University, Fort Collins, Colorado 80523 2: Department of Chemistry, Colorado State University, Fort Collins, Colorado 80523; present address: Water Resources Division, U.S.G.S., 5293 Ward Road, Arvada, CO 80002

Publication date: January 1, 1980

More about this publication?
sas/sas/1980/00000034/00000001/art00005
dcterms_title,dcterms_description,pub_keyword
6
5
20
40
5

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
X
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