The distribution of mitomycin(MIT) for injection in aqueous surfactant two phases(ASTP), consisted of cetyltrimethylammonium bromide(CTAB) and sodium oleate(SO) has been studied by spectrophotometry. The results show ...The distribution of mitomycin(MIT) for injection in aqueous surfactant two phases(ASTP), consisted of cetyltrimethylammonium bromide(CTAB) and sodium oleate(SO) has been studied by spectrophotometry. The results show that for ASTP system with a certain ratio of CTAB to SO the volume of the upper phase decreased and that of the lower phase increased with increase of MIT added, while the distribution ratio K d and single extraction yield Y of MIT in two phases remained approximately constant.展开更多
文摘The distribution of mitomycin(MIT) for injection in aqueous surfactant two phases(ASTP), consisted of cetyltrimethylammonium bromide(CTAB) and sodium oleate(SO) has been studied by spectrophotometry. The results show that for ASTP system with a certain ratio of CTAB to SO the volume of the upper phase decreased and that of the lower phase increased with increase of MIT added, while the distribution ratio K d and single extraction yield Y of MIT in two phases remained approximately constant.
文摘以氯苄和对二苯酚为原料,合成4-苄氧基苯酚,再分别与溴代十二烷、溴代十四烷、溴代十六烷反应,最后经氯磺酸磺化,制备三种烷氧二苯磺酸型表面活性剂(命名为C-12、C-14、C-16)。采用IR、1H NMR表征了结构,并测定其临界胶束浓度(CMC)分别为3.35×10-3,9.10×10-4,7.40×10-4mo L/L;表面张力(γCMC)分别为55.45,52.10,49.28 m N/m;Krafft点均<0℃,研究了其乳化性、泡沫性质。
