Open AccessGenerator photoionization gas and vapor detector
Author(s) -
Natalya I Ivanova,
Konstantin Sidorov
Publication year - 2021
Publication title -
iop conference series. materials science and engineering
Language(s) - English
Resource type - Journals
eISSN - 1757-899X
pISSN - 1757-8981
DOI - 10.1088/1757-899x/1047/1/012161
Subject(s) - photoionization , detector , generator (circuit theory) , electrode , analytical chemistry (journal) , chemistry , photoionization mode , atomic physics , optics , physics , ion , ionization , chromatography , power (physics) , organic chemistry , quantum mechanics
The paper describes a new type of photoionization gas and vapor detectors – a generator photoionization detector and a differential generator photoionization detector. In these detectors, the ion collection occurs under the influence of a contact potential difference between two electrodes that are made of different metals. The detector schemes and application are considered in detail. There are also the experimental values of the metrological characteristics are demonstrated. The authors illustrate graphical dependences of detector signals on volumetric concentrations of ammonia and ethyl mercaptan.