The system of enrichment and chromatographic separation of methanol - tne new analyte for determination of the combined isotopic composition of methane
This work is developing the new approach to mass-spectrometric determination of the combined isotopic composition of methane. The approach is based on the preliminary on-line conversion of methane to methanol in corona discharge and selective chemical ionization. One of the method's advantages is the possibility to concentrate the new analyte - methanol on sorbents at ambient temperature. The system of enrichment and separation of methanol is reported. The simple system provides the rise in the enrichment factor of methanol at least 500 and gives sufficient separation of methanol and water mixture in about 100 s.