Surface Physicochemical Characterization of Shepherd’s Purse (Capsella bursa-pastoris) by Inverse Gas Chromatography


Journal of the Turkish Chemical Society, Section A: Chemistry, vol.10, no.4, pp.1071-1080, 2023 (Scopus) identifier


Shepherd’s purse (Capsella bursa-pastoris) is one of the plants widely utilized in conventional medicine and can grow in different parts of the world. The determination of the surface properties of a solid material is extremely important for the industrial use of the material and the improvement of material properties. Therefore, in this study, this plant was used as a stationary phase, and its surface characterization was performed by inverse gas chromatography technique. In this context, firstly, the plant was prepared with several pretreatments to be used in the experimental tests. The [Formula in abstract] values were found from the retention data obtained by passing organic solvents over the plant filled into the chromatographic column in the [Formula in abstract] temperature range of 303.2–328.2 K and linear retention diagrams were drawn. The [Formula in abstract] of the plant was calculated according to Schultz, Dorris-Gray, and Donnet-Park methods, and the suitability of the methods [Formula in abstract] was compared. The [Formula in abstract] values were calculated with the data obtained from the Schultz method, and the [Formula in abstract] values were calculated using these data. The acidity and basicity of the plant surface were examined. According to the [Formula in abstract] value (0.93), it was determined that the surface of the plant was acidic.