Skip to main content

A Microcomputer-Controlled Simultaneous Multielement Nondispersive Atomic Fluorescence Spectrometer

Buy Article:

$29.00 plus tax (Refund Policy)

Abstract:

An eight-channel multielement nondispersive AFS spectrometer based on the time division multiplex method and fitted with a Commodor PET 2001 microcomputer to control lamp firing and for data manipulation is described. The pulsed behavior of ten EDLs with respect to rf power, mode of pulsing, and step frequency is examined. This device is tested with the use of an air-acetylene flame atomizer. An in-depth examination of light scattering showed that such scattering depends on the particular analyte lamp, the angle of detection, and the sample matrix. Scatter correction in the analysis of NBS bovine liver, orchard leaves, fly ash, and river sediment was done with the use of a lamp of an element not present in the sample. Results are mixed, with good values being obtained for elements present in a sample matrix in which the analyte signal is appreciably greater than the scatter signal. Detection limits for ten elements in an air-acetylene flame are given for three different lamp duty cycles. The detection limits, generally, were comparable to those obtainable by ICP-AES, ICP-AFS, and flame AAS. Simultaneous multielemental analysis (up to eight elements) is possible with the proposed equipment.

Keywords: Computer, applications; Flame atomic fluorescence spectroscopy

Document Type: Research Article

DOI: http://dx.doi.org/10.1366/0003702854249222

Affiliations: 1: The Institute for Environmental Studies, and the Departments of Geology and Chemistry, University of Toronto, Toronto, Ontario M5S 1A1, Canada 2: The Institute for Environmental Studies, and the Departments of Geology and Chemistry, University of Toronto, Toronto, Ontario M5S 1A1, Canada; present address: Division of Chemical Physics, CSIRO, P.O. Box 160, Clayton, Victoria 3168, Australia

Publication date: January 1, 1985

More about this publication?
sas/sas/1985/00000039/00000001/art00024
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