PVP is a versatile polymer with innate surface activity and has the capability to form strong adsorption to phenolic compounds, which is attributed to hydrogen bonds between imide in the center of polymer and hydroxyl group in phenolic compounds. And its chemical structure is presented in Figure 1(a). IntroductionДЄs for polyvinylpyrrolidone (PVP) mentioned here, which is a water-soluble synthetic polymer, it is an amphiphilic high molecular-weight compound containing highly polar amide groups in conjunction with apolar methylene and methane (CH) moieties. The proposed method was applied successfully to the determination of morin in real samples, and the spiked recoveries were satisfactory. The present work introduces the LOV technique as a useful tool for amperometric measurement, documents advantages of using programmable flow, and outlines means for miniaturization of assays on the basis of PVP modified CPE. A well-defined oxidation peak has been obtained in studies using PVP as a modifier of CPE based on the oxidation of morin. The excellent amperometric current response was achieved when the potential difference (О” E) of 0.6вЂ‰V was implemented in pH 6.5 phosphate buffer solution (PBS) that served as the supporting electrolyte. Meanwhile, the electrochemical behaviors of morin were investigated based on polyvinylpyrrolidone- (PVP-) doped carbon paste electrode (CPE), which found that PVP can significantly improve its oxidation peak current. The potential capabilities and analytical performance of lab-on-valve (LOV) manifold as a front end to amperometry have been explored for the on-line determination of morin.

Morin matrix 6.0