Abstract
A static headspace/ capillary gas chromatographic technique has been developed allowing dissolved gases and furan-related compounds in power transformer oils to be determined in a single chromatographic run. The simultaneous determination of these two classes of compounds from a single sample injection represents a definite advantage over current procedures for the detection of impending performance failure of the unit. The method uses gas chromatography with porous-layer open tubular (PLOT) columns and a valve operated in sequence for flowpath selection. Also, comparison with the current method using packed columns showed that dissolved-gas analysis with PLOT columns provides better peak shapes and lower detection limits ( S/N b = 3): 5, 3 and 1 ppm (v/v) for hydrogen, carbon oxides and light hydrocarbons respectively. Detection of 2-furaldehyde is possible down to 0.5 ppm (w/w).
Sign-in/Register to access full text options 
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.
