Tuning Soft Ionization Strength for Organic Mass Spectrometry.

Besides the progress of new mass spectrometer technologies, the investigation and development of soft ionization sources play an important key role for analytical sciences. Since the dielectric barrier discharge ionization (DBDI) is identified as two temporally separated events, a selective prevention of the coincident plasma can lead to improved ionization strength. Although a DBDI is known as a soft ionization source, a modulation of the high-voltage amplitude and duty cycle can lead to optimized ionization strength. This is an advantage to cover different types of analytes.

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