Neutral reactions in gas chromatography/chemical ionization mass spectrometry. [Ammonia and carbonyl compounds]
The use of NH/sub 3/ as a carrier gas and as a reagent gas produces neutral reactions between NH/sub 3/ and carbonyl compounds to give basic products which are detected by NH/sub 3/ chemical ionization (CI) in the mass spectrometer. Reactions are observed with aldehydes and ketones but not alcohols, ethers, or esters. Postcolumn addition of NH/sub 3/ or CH/sub 3/NH/sub 2/ also gives neutral products which can be detected by NH/sub 3/ CI. On-column reactions are observed with carbonyl compounds by the injection of an amine immediately after the introduction of the sample. On-column reactions are also observed by adding acetone or acetic anhydride to a mixture of amines. 19 references, 5 figures.
- Research Organization:
- Univ. of Delaware, Newark
- OSTI ID:
- 5525640
- Journal Information:
- Anal. Chem.; (United States), Journal Name: Anal. Chem.; (United States) Vol. 57:4; ISSN ANCHA
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
400104* -- Spectral Procedures-- (-1987)
400301 -- Organic Chemistry-- Chemical & Physicochemical Properties-- (-1987)
ALCOHOLS
ALDEHYDES
AMMONIA
BASES
CHEMICAL REACTION YIELD
CHEMICAL REACTIONS
CHROMATOGRAPHY
DATA
DISSOCIATION
ESTERS
ETHERS
EXPERIMENTAL DATA
GAS CHROMATOGRAPHY
HYDRIDES
HYDROGEN COMPOUNDS
HYDROXY COMPOUNDS
INFORMATION
KETONES
MASS SPECTROSCOPY
NITROGEN COMPOUNDS
NITROGEN HYDRIDES
NUMERICAL DATA
ORGANIC COMPOUNDS
ORGANIC OXYGEN COMPOUNDS
SEPARATION PROCESSES
SPECTROSCOPY
YIELDS