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Ammonium adduct ion in ammonia chemical ionization mass spectrometry: 2—Mechanism of elimination of neutrals from the ammonium adduct ion

✍ Scribed by Hisao Nakata; Yoshihiko Hoshino; Naohito Takeda; Akira Tatematsu


Publisher
John Wiley and Sons
Year
1985
Tongue
English
Weight
349 KB
Volume
20
Category
Article
ISSN
1076-5174

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Under chemical ionization (CI) conditions, cis and trans 1,2-indanediols mainly react with the NH 3 /NH 4 + system via a nucleophilic substitution process. In the CI source several mechanisms can occur yielding the substituted [M + NH 4 -H 2 O] + ions at m/z 150. Collisionally activated reaction (CA