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Charge‐state‐derivation ion detection using a super‐conducting nanostructure device for mass spectrometry
Author(s) -
Suzuki K.,
Ohkubo M.,
Ukibe M.,
ChibaKamoshida K.,
Shiki S.,
Miki S.,
Wang Z.
Publication year - 2010
Publication title -
rapid communications in mass spectrometry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.528
H-Index - 136
eISSN - 1097-0231
pISSN - 0951-4198
DOI - 10.1002/rcm.4780
Subject(s) - chemistry , ion , mass spectrometry , detector , analytical chemistry (journal) , kinetic energy , charge (physics) , range (aeronautics) , optoelectronics , atomic physics , physics , optics , materials science , organic chemistry , chromatography , quantum mechanics , composite material
Mass spectrometry (MS) is a method of analyzing ions based on their mass/charge ( m/z ) ratios. The m/z peak identification requires speculation on the ionic unit‐charge states. This problem can be solved by using superconducting junction devices to measure the kinetic energies of single molecules. However, the kinetic energy measurement is followed by the dead time of 1–20 µs, which is fatally slow for modern high‐resolution time‐of‐flight (TOF) analyzers. In this paper, we demonstrate that a superconducting nano‐stripline detector (SSLD) composed of a 10‐nm‐thick and 800‐nm‐wide NbN strip realizes the charge‐state derivation, and furthermore satisfies the ideal MS detector specifications such as a nano‐second response, a short recovery time, a wide mass range, and no noise. Copyright © 2010 John Wiley & Sons, Ltd.