Abstract: An alginate capsule gel which has a selective adsorption for nicotine was synthesized from sodium alginate, carboxymethylcellulose (CMC), and a nicotine-imprinted polymer obtained by a molecular imprinting method. Its absorptive characteristic was examined for nicotine at 25.DEG.C. and compared with those for some adsorbates having similar molecular structures to nicotine. The nicotine-imprinted polymers adsorbed nicotine, cotinine, nicotinic acid, and disodium anthraquinone-1,5-disulfonate to 80, 40, 10, and 5%, respectively, at the equilibrium or the maximum state; the adsorption of cotinine was as half as that of nicotine. On the other hand, the adsorption of the capsule was not so high, but highly selective to nicotine; nicotine was only adsorbed to 40% at the maximum, but no adsorption was observed for the other adsorbates. (author abst.)
Template and target information: nicotine, cotinine