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Determination of methylamines and trimethylamine-N-oxide in particulate matter by non-suppressed ion chromatography

Permanent URL:
http://handle.nal.usda.gov/10113/41387
File:
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Abstract:
An ion chromatography method with non-suppressed conductivity detection was developed for the simultaneous determination of methylamines (methylamine, dimethylamine, trimethylamine) and trimethylamine-N-oxide in particulate matter air samples. The analytes were well separated by means of cation-exchange chromatography using a 3mM nitric acid/3.5% acetonitrile (v/v) eluent solution and a Metrosep C 2 250 (250mmx4mm i.d.) separation column. The effects of the different chromatographic parameters on the separation were also investigated. Detection limits of methylamine, dimethylamine, trimethylamine, and trimethylamine-N-oxide were 43, 46, 76 and 72μg/L, respectively. The relative standard deviations of the retention times were between 0.42% and 1.14% while the recoveries were between 78.8% and 88.3%. The method is suitable for determining if methylamines and trimethylamine-N-oxide are a significant component of organic nitrogen aerosol in areas with high concentration of these species.
Author(s):
Erupe, Mark E. , Liberman-Martin, Allegra , Silva, Philip J. , Malloy, Quentin G.J. , Yonis, Naomi , Cocker, David R. , Purvis-Roberts, Kathleen L.
Subject(s):
methylamine , amines , dimethylamine , trimethylamine , chromatography , pollutants , air pollution , particulates , ion exchange chromatography
Format:
p. 2070-2073.
Note:
Includes references
Source:
Journal of chromatography. A 2010 Mar. 26, v. 1217, no. 13
Language:
English
Publisher:
Amsterdam; New York: Elsevier
Year:
2010
Collection:
Journal Articles, USDA Authors, Peer-Reviewed
Rights:
Works produced by employees of the U.S. Government as part of their official duties are not copyrighted within the U.S. The content of this document is not copyrighted.