Voltammetric investigation of β-estradiol

Chronocoulometry diffusion coefficients as a measure of cyclodextrin–estradiol complex association

“…The electrochemical behavior of estradiol on glassy carbon in aqueous solution has been previously studied [2,6]. Owing to a low solubility of estradiol in aqueous solutions, ethanol should be added to the solution to avoid precipitation of estradiol.…”

UV derivative spectrophotometric method for determination of estradiol valerate in tablets

“…[10][11][12] Some recent publications describe the determination of β-estradiol and its derivatives like ethynylestradiol, estradiol 3-methyl ether, and estradiol 17-acetate in pharmaceutical formulation. [13][14][15][16] In the study of Havlíková et al, 16 the stability of β-estradiol in topic gel was evaluated, and the HPLC method developed presented a good performance to separate the degradation products, allowing the reliable quantitation of the drug.…”

Development of a screen-printed carbon electrochemical immunosensor for picomolar concentrations of estradiol in human serum extracts

“…The direct electrochemical oxidation of E 2 is possible using voltammetry at a glassy carbon electrode at high over-potential, but the detection limits are relatively high, at concentrations down to about 1.2 Â 10 À 5 M, and require low pH methanol/water/H 2 SO 4 as supporting electrolyte [1]. Similarly, direct detection is possible using glassy carbon electrodes modified with multi-walled carbon nanotubes [2].…”