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Multi-anode detection in electrospray ionization time-of-flight mass spectrometry
D C Barbacci1, D H Russell, J A Schultz
1Department of Chemistry, Texas A&M University, College Station 77843, USA.
Journal of the American Society for Mass Spectrometry
|December 3, 1998
Abstract:
An electrospray ionization ion source coupled to a time-of-flight mass analyzer incorporating a multi-anode time-to-digital converter is described. High-speed data acquisition (kHz mass spectral acquisition) rates are achieved. The four-anode detector produces a significant increase in detection/counting efficiency over that for a single-anode detector. In this work a 2.5 times increase in detection efficiency is demonstrated. The multi-anode detector is also used as a diagnostic tool to optimize transmission of the ion optics.