Determination of warfarin by sensitized fluorescence using organized media

An electrochemical sensor for warfarin determination based on covalent immobilization of quantum dots onto carboxylated multiwalled carbon nanotubes and chitosan composite film modified electrode

“…Detection limit and linear range of the proposed electrode were compared with other previously reported methods, and the results were summarized in Table 1. As it can be seen, the proposed method has a wider linear range than those reported for WAR determination [11][12][13][14][15][16][17][18][19][20][21][22][23].…”

“…A number of methods have been used for the determination of WAR including high performance liquid chromatography [8][9][10][11][12][13][14][15], liquid chromatography [16,17], capillary electrophoresis [18], phosphorescence [19], fluorescence [20], cloud point extraction [21], and spectrofluorimetric [22]. Electrochemical techniques are alternative methods for the WAR determination because they are simple, fast, sensitive and low cost.…”

Evaluation of reduction kinetics of 2,2-diphenyl-1-picrylhydrazyl radical by flavonoid glycoside Rutin in mixed solvent based micellar media

“…5a shows the emission spectra of Rutin in solvents of different polarities and/or viscosities. Rutin presents very small fluorescence intensity in aqueous environment possibly due to the non-radiative decay processes that are usually most prevalent in aqueous environment [41]. Rutin shows bathochromic shift in em with the increase in polarity of the solvent from dioxane to 1:1 M-W system, being large from dioxane (511 nm) to butanol (524 nm) and relatively slight shift from butanol to methanol (526 nm) and then to 1:1 M-W (531 nm) solvents.…”

Enantioselective degradation of warfarin in soils

“…An enantioselective analytical method for determining warfarin enantiomers in soil is also unavailable. Few of studies have been conducted on nonenantioselective determination of warfarin in environmental samples 14, 17–19. For example, Medvedovici et al developed a high performance liquid chromatography (HPLC) method for determination of three rodenticides, including warfarin, in soil 20.…”