Hypercoulometric effect in an electron capture detector polarized with an additional voltage |
| |
Authors: | J. Lasa I. Sliwka B. Drozdowicz |
| |
Affiliation: | (1) Institute of Nuclear Physics, ul. Radzikowskiego 152, PL-31-342 Cracow, Poland |
| |
Abstract: | Summary This paper reports measurements of the current characteristics and of the signal corresponding to a constant concentration of Freon F-11 for an electron-capture detector, supplied with a pulse voltage with a changeable pulse duration, amplitude and repetition time. It was found that an additional voltage applied to the detector cathode increased the detector signal by about 50% and that the maximal signal was observed at 5 V. The influence of the polarized voltage on the electron caputure efficiency coefficient (p) measured with two detectors in series was demonstrated and the reliability of the sample mass calculation by means of (p) is discussed. |
| |
Keywords: | Gas chromatography Electron capture detector Hypercoulometry Secondary polarisation effects |
本文献已被 SpringerLink 等数据库收录! |