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Title: Preliminary study of the analysis of oligogalacturonic acids by electrospray ionization mass spectrometry
Authors: Zhu, L. 
Lee, H.K. 
Issue Date: 2001
Citation: Zhu, L., Lee, H.K. (2001). Preliminary study of the analysis of oligogalacturonic acids by electrospray ionization mass spectrometry. Rapid Communications in Mass Spectrometry 15 (12) : 975-978. ScholarBank@NUS Repository.
Abstract: During systematic studies of the behavior of oligogalacturonic acids (OGAs) under different conditions using electrospray ionization mass spectrometry (ESI-MS), cation adduction, fragmentation and non-covalent binding were found to be the three major problems that compromised the analysis of OGAs by ESI-MS. By adjusting solution components, capillary temperature and capillary voltage in the ESI source, an optimized condition was found that gave a clean and clear spectrum of trigalacturonic acid. A direct injection ESI-MS technique based on the use of aqueous acetonitrile and acetic acid and triethylamine (TEA) as modifiers has been applied to analyze a mixture including mono-, di- and trigalacturonic acids, which will facilitate further applications of ESI-MS in the analysis of mixtures of OGAs. © 2001 John Wiley & Sons, Ltd.
Source Title: Rapid Communications in Mass Spectrometry
ISSN: 09514198
DOI: 10.1002/rcm.326
Appears in Collections:Staff Publications

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