Abstract
The optimum volume for a flow-through gas cell used in the gas chromatography-infrared spectroscopy interface (GC-ir) is shown to be equal to the volume of carrier gas between the half-width points of the GC peak. The optimum length and diameter for light-pipe gas cells for GC fractions separated using 1/8 in. packed columns and support-coated open tubular columns has been calculated for infrared measurements made using a rapid-scanning Fourier transform infrared spectrometer with either a triglycine sulfate or a mercury cadmium telluride detector. A sampling trigger actuated by the inflection points of the GC peak has been shown to be superior to the more usual threshold type of trigger. Expressions for the delay time between actuation of the trigger and initiation of data collection are also derived.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
