Combining Chromatograph and Detector based on Plasma Electron Spectroscopy into a Single Analytical Cycle—Towards Creating “GC-PLES”

The paper presents for the first time a hardware implementation for combining a compact automated chromatograph and the developed innovative detector based on plasma electron spectroscopy (PLES) into a single analytical device “GS-PLES”. The operability of the proposed technique and the expansion of the capabilities of plasma electron spectroscopy in analytical applications are demonstrated using the example of analyzing the composition of the gas mixture He + CH₄ (600 ppm) + N₂ + O₂ (700 ppm). In addition to recording the energy spectra of fast electrons formed in the reactions of Penning ionization of atoms and molecules of impurity gas by metastable helium atoms, a quantitative assessment of the concentrations of impurities and plasma parameters in the working chamber of the developed device is carried out.