Negative ion chemical ionization (CI-) mass spectra of the commonly occurring amino acids are simple and give information regarding molecular weight by the presence of [M + Cll-adduct in the case of simple amino acids and [M -win the case of amino acids containing additional polar group. tert-Butylo
Electrospray ionization mass spectra of amino acid phosphoramidates of adenosine
β Scribed by Hua Fu; Li Xu; Qiang Lv; Jing-Zun Wang; Hong-Zhan Xiao; Yu-Fen Zhao
- Publisher
- John Wiley and Sons
- Year
- 2000
- Tongue
- English
- Weight
- 140 KB
- Volume
- 14
- Category
- Article
- ISSN
- 0951-4198
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Wrong-way-round' electrospray ionization, in the present context, refers to observation of intense [M + H] + ions electrosprayed from strongly basic solutions and of [M -H] -ions from strongly acidic solutions. Most previous investigations of this phenomenon have been directed at variations in charg
## Electrospray ionization (ESI) mass spectra of ternary complexes of Cu 2Y and 1,10-phenanthroline with the 20 essential amino acids (AA) were investigated quantitatively. Non-basic amino acids formed singly charged complexes of the [Cu(AA -H)phen] Y type. Lysine (Lys) and arginine (Arg) formed do
Dimethyl ether (DME) is a useful reagent gas for the characterization of a variety of diverse biologically important or environmentally signiΓcant classes of compounds. In this work the gas-phase ion-molecule reactions of DME with 23 a-amino acids were investigated and the collision-induced dissocia