Fast atom bombardment mass spectrometry (FABMS) of several taxanes and 11(15 ร 1)abeo-taxanes having a 4(20)-exocyclic methylene group or oxetane ring was studied in detail using collision-induced dissociation (CID) of their and ions. The results indicate that FAB followed by MS/MS is a [ M + NH 4
Fast atom bombardment combined with mass spectrometry for characterization of polycyclic aromatic hydrocarbons
โ Scribed by Chhabil Dass
- Book ID
- 108044571
- Publisher
- Elsevier Science
- Year
- 1990
- Tongue
- English
- Weight
- 801 KB
- Volume
- 1
- Category
- Article
- ISSN
- 1044-0305
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A study of small (n = 3 to 6) oligonucleotide and the metastable and collisionally activated decompositions of their (M-H)- species desorbed by using fast atom bombardment (FAB) is reported. Data were obtained for both ribo- and 2'-deoxyribotrinucleotides and for 2'-deoxyribotetra-, penta-, and hexa
Girard's reagents were used to derivatize ketosteroids and conjugates for analysis by positive ion fast atom bombardment mass spectrometry. Spectra contain an abundant ion corresponding to the cation ( C ' ) of the newly formed ionic derivative (C+A-) and relatively little fragmentation. With deriva