Schweer H, Seyberth HW, Meese CO, Fürst O. Negative ion chemical ionization gas chromatography/mass spectrometry and gas chromatography/tandem mass spectrometry of prostanoid pentafluorobenzyl ester/methoxime/trimethylsilyl ether derivatives.
BIOMEDICAL & ENVIRONMENTAL MASS SPECTROMETRY 1988;
15:143-51. [PMID:
3365491 DOI:
10.1002/bms.1200150305]
[Citation(s) in RCA: 19] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
Negative ion chemical ionization mass spectra of prostaglandin F2 alpha, prostaglandin E2, prostaglandin D2, 6-oxo-prostaglandin F1 alpha, 2,3-dinor-6-oxo-prostaglandin F1 alpha, thromboxane B2, 2,3-dinor-thromboxane B2, and 11-dehydro-thromboxane B2 pentafluorobenzyl ester (PFB)/methoxime/trimethylsilyl ether derivatives are presented. Collisionally activated decomposition mass spectra of the [M-PFB]- ions at collision energies of 8-24 eV and argon collision gas pressures of 1-2m Torr almost show only fragmentation of trimethylsilanol, (CH3)2Si = CHOH, (CH3)2Si = CH2 and methanol whereas, except for carbon dioxide loss, only few low-intensity fragments from the carbon skeleton of the prostanoids are observed.
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