Determination of binding-dioxygen in dioxygen complexes by headspace gas chromatography
Wei Wang1, Shun Feng, Ya-ni Li
1Key Laboratory of Oil & Gas Fine Chemicals, Ministry of Education, Urumqi 830046, China.
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.
More Related Videos
08:37Measurement of H2S in Crude Oil and Crude Oil Headspace Using Multidimensional Gas Chromatography, Deans Switching and Sulfur-selective Detection
Published on: December 10, 2015
09:24Synthesis, Hemoglobin Encapsulation and Biorthogonal PEGylation in Hierarchically Porous UiO-66 Nanoparticles for Oxygen Delivery Applications
Published on: May 8, 2026
Related Concept Videos
Oxygen Transport in the Blood
Gas Chromatography: Types of Detectors-II
Gas Chromatography–Mass Spectrometry (GC–MS)
A gas chromatograph consists of a long, narrow capillary column with a polysiloxane coating on the inner wall. The coating...
Protein-Drug Binding: Determination Methods
Indirect methods involve isolating the bound drug from its free form in biological samples such as blood, serum, or plasma. These techniques aim to measure the percentage of drugs bound to proteins. Equilibrium dialysis is a commonly used method where the free drug concentration at equilibrium is measured by separating the bound...
Gas Chromatography: Introduction
In GC, a sample is vaporized and mixed with an inert carrier gas (the mobile phase), which transports it through a column.
Adsorption of Gases on Solids
