Ion-molecule reactions of 2-methoxyethanol with some amines, carboxylic acids and amino acids under chemical ionization conditions

✍ Scribed by Jaana M. H. Pakarinen; Harri Moisio; Sanna Holopainen; Pirjo Vainiotalo

• Publisher: John Wiley and Sons
• Year: 1999
• Tongue: English
• Weight: 68 KB
• Volume: 13
• Category: Article
• ISSN: 0951-4198
• DOI: 10.1002/(sici)1097-0231(19990730)13:14<1485::aid-rcm672>3.0.co;2-4

✦ Synopsis

2-Methoxyethanol chemical ionization of amines, carboxylic acids and amino acids has been found to produce numerous adduct ions. The most intense adduct ions for amines are [M H] and [M 77] , for carboxylic acids [M 27] , [M 59] and [M 77] , and for amino acids [M H] , [M 13] , [M 27] and [M 77] . Either the adduct ion [M H] or [M 77] was the most abundant ion found for amino acids. The proton affinities of amino acids are noticed to control the formation of the [M H] and [M 77] ions. The relative abundance of [M 13] and [M 27] ions varied for different amino acids being most intense for phenylalanine and aspartic acid.