富士化學有限公司是一個**的專業(yè)硅膠填料制造商，擁有70多年的歷史，積累了豐富的經(jīng)驗。硅膠產(chǎn)品始終是其核心業(yè)務(wù)，在中國大陸擁有廣泛的工業(yè)客戶基礎(chǔ)，以其優(yōu)越的性價比，是國內(nèi)天然**和合成藥等原料藥生產(chǎn)商的優(yōu)選填料之一。 Fuji(富士)填料CHROMATOREX ACD Silica Gels ACD Silica Gels For the separation of acid compounds COOH Silica & SO3H Silica COOH MB 100-75/200 SO3H MB COOH MB 100-40/75 SO3H MB 100-40/75 COOH SMB 100-20/45 SO3H SMB 100-20/45 COOH SPS 100-5 SO3H SPS 100-5 Introduction Liquid chromatography is a widely used technique for purification of organic compounds.Normal phase chromatography using silica gel and non-polar solvents such as hexane and ethyl acetate is a popular choice because of a high solubility of compounds and easy post-treatment. However, compounds with basic or acidic characteristics are often difficult to separate using bare silica gel. Though AMINO and DIOL media have been developed for compounds that have basic separation difficulty, there is not yet a proper media to separate acid compounds with carboxyl group, for example. Fuji Silysia Chemical Ltd. developed an appropriate separation, Chromatorex ACD Silica, for acidic compounds by introducing COOH and SO3H bonds on the silica surface (patent applied). Normal Phase Bare & Bonded Silica grades The ACD Silica grades complete the normal phase bare and bonded silica of Fuji Silysia Chemical. For the separation of organic compounds by normal phase liquid chromatography, it is necessary to select the proper media based on its characteristics: Neutral compounds are well separated by bare silica gel. NH silica and DIOL silica are used for basic compounds separation. Now acid compounds can be separated with our new ACD Silica.