Title: Glow discharge mass spectrometric analysis of atmospheric particulate matter
Authors: Schelles, W ×
Maes, KJR
De Gendt, Stefan
VanGrieken, RE #
Issue Date: Jan-1996
Publisher: Amer chemical soc
Series Title: Analytical chemistry vol:68 issue:7 pages:1136-1142
Abstract: A direct current (dc) glow discharge mass spectrometer has been used to analyze atmospheric particulate matter, The sample preparation used is simple and time-saving, The air is sucked by a pump through a single-orifice impactor stage, in which the aerosols are impacted on a metal support, forming a central spot. This metal plate is directly used as a cathode in a de glow discharge mass spectrometer. Evaluation of the sample loading and of the discharge parameters allowed us to optimize the signal intensity and to minimize its decrease, the latter being a consequence of its consumption by continuous sputtering in the discharge, The available aerosol analysis time could be prolonged to more than 3 h, a time span necessary to perform a multielement analysis using a magnetic sector instrument and long integration times. A NIST reference aerosol was measured to evaluate the quantitative analysis potential, The internal reproducibility was better than 10% RSD, and the limits of detection were estimated to be in the low ppm or sub ppm region, Even without the use of any standards or correction factors, glow discharge mass spectrometry could offer good semiquantitative results, based only on the use of an internal standard.
ISSN: 0003-2700
Publication status: published
KU Leuven publication type: IT
Appears in Collections:Molecular Design and Synthesis
× corresponding author
# (joint) last author

Files in This Item:

There are no files associated with this item.

Request a copy


All items in Lirias are protected by copyright, with all rights reserved.

© Web of science