A Novel Microwave-Induced Plasma Ionization Source for Ion Mobility Spectrometry.

ABSTRACT: This work demonstrates the application of a novel microwave induced plasma ionization (MIPI) source to ion mobility spectrometry (IMS). The MIPI source, called Surfatron, is composed of a copper cavity and a hollow quartz discharge tube. The ion mobility spectrum of synthetics air has a main peak with reduced mobility of 2.14 cm²V^-1s^-1 for positive ion mode and 2.29 cm²V^-1s^-1 for negative ion mode. The relative standard deviations (RSD) are 0.7% and 1.2% for positive and negative ion mode, respectively. The total ion current measured was more than 3.5 nA, which is much higher than that of the conventional ⁶³Ni source. This indicates that a better signal-to-noise ratio (SNR) can be acquired from the MIPI source. Th

SUBMITTER: Dai J 

PROVIDER: S-EPMC5347007 | biostudies-literature | 2017 Mar

REPOSITORIES: biostudies-literature