论文部分内容阅读
中國藥典(1955年版)麻黄含量测定項下所收載的方法,是和英國藥方錄(B.P.C.1949)麻黄含量测定的方法相類似的,我們需要商榷的地方,就在:‘…醚液合併,放置,俟澄明,倾瀉過濾,濾液置燒杯中,加溫,此時如有結晶析出,應將醚液倾出,置蒸發皿中,蒸發,使容積減縮成10ml,放置,俟醚自然揮散。加一定量的N/10硫酸液…’。加温和蒸發這一節,根據Bhavnani的意見:‘…英國副藥典(按指B.P.C.)中所舉测定的方法,並不能令人滿意,其理由
The method described in the Chinese Pharmacopoeia (Edition 1955) for the determination of the content of ephedra is similar to the method used for the determination of the content of ephedra in the British Record (BPC 1949). Where we need to discuss is: ’... etherification, Place, clear and clear, pour down the filtrate, place the filtrate in a beaker, and warm it. If any crystals are precipitated at this time, the ether solution should be poured out, placed in an evaporating dish, evaporated, and the volume reduced to 10 ml. . Add a certain amount of N/10 sulfuric acid...’. The section on warming and evaporation, according to Bhavnani’s opinion: ‘... the method of determination in the British Pharmacopoeia (refer to B.P.C.) is not satisfactory, and its reason