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Z吉亞鐵蟲 (初入文壇)
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[求助]
羥丙基環(huán)糊精包載藥物三氯生遇到的問題 已有3人參與
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我用羥丙基被他環(huán)糊精包載三氯生,羥丙基被他環(huán)糊精易溶于水,三氯生難溶于水,60℃能溶于水,我先將三氯生溶于60℃的水中,再加入羥丙基被他環(huán)糊精的溶液,攪拌2小時(shí),冷卻,析出白色沉淀,我認(rèn)為白色沉淀是三氯生,然后將溶液冷卻干燥,得到包合物,但是這樣的包合物包載量很低,請問下大神們有沒有什么方法能提高包合效率。 First of all, triclosan was dispersed in water at 40◦C because it is not soluble in water.Then, HPCD (160%, w/v) and HPCD (160%, w/v) aqueous solutions were separately added to the triclosan aqueous dispersion. The amount of CD and triclosan was adjusted accordingly in order to have 1:1 molar ratio of triclosan/HPCD-IC and triclosan/HPCDIC. After the addition of HPCD and HPCD to triclosan dispersion,the solutions became clear and homogeneous due to the dissolution of triclosan by IC formation. As the solutions were cooled down at room temperature and stirred overnight, highly turbid and white color suspensions of triclosan/HPCD-IC and triclosan/HPCD-IC were obtained. 這是文獻(xiàn)上的,但是在40℃的時(shí)候,三氯生分散水中,不會(huì)溶解,加入羥丙基環(huán)糊精后,不會(huì)變澄清,所以我擴(kuò)大到溫度到60℃,能溶解,但是最后析出來的白色沉淀應(yīng)該是三氯生吧 |
新蟲 (初入文壇)

金蟲 (小有名氣)

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