Favorable Effects of Weak Acids on Negative-Ion Electrospray Ionization Mass Spectrometry
β Scribed by Wu, Zengru; Gao, Wenqing; Phelps, Mitch A.; Wu, Di; Miller, Duane D.; Dalton, James T.
- Book ID
- 121420065
- Publisher
- American Chemical Society
- Year
- 2004
- Tongue
- English
- Weight
- 166 KB
- Volume
- 76
- Category
- Article
- ISSN
- 0003-2700
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The mass spectrometry (MS) behaviour of ten commercially available penicillins has been studied by means of electrospray and multiple-stage MS/MS experiments performed using an ion trap instrument. For all the examined compounds negative ions are produced under ESI conditions, with a yield two or th
The total current and selected ion currents from the electrospray ionization (ES1) of 10(-5) M solutions of cocaine hydrochloride and deoxycytidine monophosphate (dCMP) monosodium salt in methanol and water solvents were compared in positive and negative ion modes, respectively, without and with SF6