Solid state 13C NMR spectroscopy provides direct evidence for reaction between ethinyl estradiol and a silicone elastomer vaginal ring drug delivery system
Keywords: قطبش متقاطع; Covalent binding; 17α-Ethinyl-estradiol; 13C-labelled; Addition cure silicone elastomer; Nuclear magnetic resonance; Hydrosilylation; CDCl3; deuterated chloroform; CP; cross-polarisation; DAC; dual asymmetric centrifuge; DPV; dapivirine; EE; Ethinyl estr