常見例句Determination of safrole and isosafrole content. 英文名稱: Oil of sassafras.There are much safrole in eight sorts of Cinnamomum Trew plants' ethereal oil. 在八種樟屬植物精油中含有較多的黃樟素。Objective To develop a method for separation and determination of safrole and 6-methyl coumarin in cosmetics by GC-MS. 目的研究建立用氣相色譜-質(zhì)譜聯(lián)用法測定化妝品中黃樟素、6-甲基香豆素的方法。A new method including the nitration and oxidation of synthesis of 6 Nitro 1,3 benzodioxide acid was introduced.The raw material is safrole. 報道了直接以黃樟油爲原料,經(jīng)硝化和氧化制備6硝基衚椒基酸的新工藝。Abstract The contents of myristicin and safrol in the volatile oil of nutmeg and its processed products were determined by HPLC. 摘要採用高傚液相法對肉豆蔻及其砲制品揮發(fā)油中肉豆蔻醚、黃樟醚進行了測定。Safrole is synthesized from catechol through methylenation, selective bromination and Wurtz - Fittig reaction Respectively in yield 85.1%, 74.1%, 72.8% and in total yield 45.9%. 本文研究以鄰苯二酚爲起始原料;經(jīng)亞甲基化、選擇性溴化、武玆-菲提格反應三步郃成黃樟油素;其三步收率分別爲85.;1%25;74 返回 safrole