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Development of high-pressure probe electrospray ionization for aqueous solution

Rapid communications in mass spectrometry : RCM | 15 Dec 2012

MM Rahman, LC Chen and K Hiraoka
Abstract
Probe electrospray ionization (PESI) is a recently developed method that uses a sharp solid needle as electrospray emitter and the sample is loaded to the needle tip by repetitive movement of the needle probe. This method has been previously used for the analysis of sample with high salt concentration and real-world samples without sample pretreatment. Although PESI is also applicable to aqueous solution, the ion signal stability and reproducibility were not satisfactory due to the spontaneous occurrence of corona discharge taking place on the metallic needle tip.
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Concepts
1980s music groups, Chemical properties, Ion source, Solid, Solutions, Aqueous solution, Concentration, Chemistry
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