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1 仪器与试剂 ZRS-8智能溶出度仪;TU-1901双光束紫外分光光度计;FA1104电子天平;PHs-3C型酸度计;磷酸二氢钠,磷酸氢二钠,氢氧化钠,盐酸(均为分析纯);双氯芬酸钠对照品。 A厂25mg,肠溶糖衣片;B厂50mg,肠溶微粒胶囊;C厂25mg,肠溶衣片;D厂75mg,缓释片;E厂50mg,缓释胶囊;F厂75mg,双释放胶囊。2 方法与结果
1 instrument and reagent ZRS-8 intelligent dissolution tester; TU-1901 dual-beam UV spectrophotometer; FA1104 electronic balance; PHs-3C-type pH meter; sodium dihydrogen phosphate, disodium hydrogen phosphate, sodium hydroxide, hydrochloric acid For analytical grade); diclofenac sodium reference substance. A factory 25mg, enteric coated tablets; B plant 50mg, enteric-coated capsules; C plant 25mg, enteric-coated tablets; D plant 75mg, sustained release tablets; E plant 50mg, sustained release capsules; F plant 75mg, . 2 methods and results