Fortschritte in der Anwendung von Massenspektrometern als spezifisch anzeigende Ionisationsdetektoren für die Graschromatographie

Analytical methods to determine phytoestrogenic compounds

“…Even now, for routine analysis of volatile organics, high-resolution GC directly combined with now the wide range of low-cost bench-top MS instruments remain a most attractive technique. In 1959, Gohlke first described the direct introduction of GC effluent into a time-of-flight (TOF) mass spectrometer equipped with an oscilloscope [82], and only a few years latter, analyses of different volatile organic compounds using this new technique were reported [83,84]. Over time, direct coupling of a GC unit with various capillary columns to different MS analyzers, i.e.…”

Correlations and Anomalies in Mass Spectra. Lactones.

“…To identify these compounds it is necessary to resort either to elaborate, large scale extraction and distillation or to micro-qualitative methods such as mass spectrometry. The latter approach is increasingly attractive, especially with recent developments in combination of capillary gas chromatography with rapid-scan mass spectrometry (4,6,10,11,IS).…”

Gas Chromatography

“…Two microthermal conductivity detectors capable of sensing 10 ~9 moles without difficulty and suitable for use with capillary columns were designed and constructed (89). Brunnée et al (77) lead the effluent from a capillary column into a mass spectrometer with two ionization chambers. A 20 e.v.…”