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Analysis of aldehydes in cloud- and fogwater samples by HPLC with a postcolumn reaction detector

Igawa, Manabu and Munger, J. William and Hoffmann, Michael R. (1989) Analysis of aldehydes in cloud- and fogwater samples by HPLC with a postcolumn reaction detector. Environmental Science and Technology, 23 (5). pp. 556-561. ISSN 0013-936X. http://resolver.caltech.edu/CaltechAUTHORS:20150814-112037484

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Abstract

High-performance liquid chromatography (HPLC) coupled with a segmented-flow analyzer was used for the analysis of aldehydes. The aldehydes, which were separated on a reversed-phase C_(18) column, were derivatized with 3-methyl-2-benzothiazolinonhe ydrazone (MBTH) and detected at 640 nm. MBTH reacts readily with all aliphatic aldehydes to form MBTH derivatives with high molar absorptivities. Aldehydes below 1 µM can be easily detected by this method. Because aldehydes and other solutes are separated by HPLC before derivatization, free aldehydes are detected without interference. Aldehydes in cloud- and fogwater samples were analyzed. Form-aldehyde, acetaldehyde, glyoxal, and methylglyoxal concentrations were determined. Results obtained with the MBTH method were consistent with those obtained with the 2,4-dinitrophenylhydrazine (DNPH) method. The MBTH method allows for the rapid determination of the concentration of free aldehydes; the DNPH method will yield similar results, although the procedure is more cumbersome and time consuming.


Item Type:Article
Related URLs:
URLURL TypeDescription
http://dx.doi.org/10.1021/es00063a007DOIArticle
http://pubs.acs.org/doi/abs/10.1021/es00063a007PublisherArticle
ORCID:
AuthorORCID
Hoffmann, Michael R.0000-0002-0432-6564
Additional Information:© 1989 American Chemical Society. Received for review May 31,1988. Accepted November 10,1988. Publication Date: May 1989.
Record Number:CaltechAUTHORS:20150814-112037484
Persistent URL:http://resolver.caltech.edu/CaltechAUTHORS:20150814-112037484
Official Citation:Analysis of aldehydes in cloud- and fogwater samples by HPLC with a postcolumn reaction detector Manabu Igawa, J. William Munger, and Michael R. Hoffmann Environmental Science & Technology 1989 23 (5), 556-561 DOI: 10.1021/es00063a007
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:59534
Collection:CaltechAUTHORS
Deposited By: Ruth Sustaita
Deposited On:14 Aug 2015 19:15
Last Modified:14 Aug 2015 19:15

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