Abstract
Headspace-gas chromatography was employed to study the behavior of methanethiol in buffer solutions (pH 6·3) in the presence of transition metals and ascorbate. In the presence of Cu(II) (1 ppm), methanethiol (2 ppm) was depleted within 30 min at 30°C by 70% and 30% under aerobic and anaerobic conditions, respectively. Under similar conditions, Fe(III) alone catalyzed the oxidation of methanethiol to only a very limited extent (15%). However, ascorbate plus Fe(III) mediated a rapid formation of dimethyl trisulfide at 30°C in a model system containing methanethiol and hydrogen sulfide. A partial inhibition of dimethyl trisulfide formation by benzoate in the ascorbate plus Fe(III) system suggested that the hydroxyl radical was involved in the pathway leading to the formation of dimethyl trisulfide.
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.
