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. doi:10.1021/es00063a007. https://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 | |||||||||
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| Additional Information: | © 1989 American Chemical Society. Received for review May 31,1988. Accepted November 10,1988. Publication Date: May 1989. | |||||||||
| Issue or Number: | 5 | |||||||||
| DOI: | 10.1021/es00063a007 | |||||||||
| Record Number: | CaltechAUTHORS:20150814-112037484 | |||||||||
| Persistent URL: | https://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: | 10 Nov 2021 22:22 |
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