title: Determination of binding-dioxygen in dioxygen complexes by headspace gas chromatography.
abstract: Dioxygen complexes play important roles in organisms' bodies, so the determination of binding-dioxygen has practical significance. A simple and robust method based on headspace gas chromatography was proposed to determine the binding-dioxygen in dioxygen complexes. By measuring the content change of nitrogen gas in a vial, the amount of oxygen released from dixoygen complexes can be determined. The method was validated using potassium chlorate as model sample, and the results exhibited good recoveries (90-99%) with the relative standard deviation less than 8%. It was also used to analyze dioxygen complex of cobalt bis(salicylaldehyde) ethylenediimine and polyamine cobalt complexes prepared by solid-phase reaction.
authors.affiliation: Key Laboratory of Oil & Gas Fine Chemicals, Ministry of Education, Urumqi 830046, China.
authors.forename: Wei
authors.initials: W
authors.lastname: Wang
authors.forename: Shun
authors.initials: S
authors.lastname: Feng
authors.forename: Ya-ni
authors.initials: YN
authors.lastname: Li
authors.forename: Meiying
authors.initials: M
authors.lastname: Wu
authors.forename: Jide
authors.initials: J
authors.lastname: Wang
mesh_terms: D002849:Chromatography, Gas / Q000379:methods*; D010100:Oxygen / Q000737:chemistry*; D012680:Sensitivity and Specificity
chemical_list: D010100:Oxygen