Recently biospecific affinity chromatography has been widely used for the separation and purification of various enzymes and nucleic acids. In this paper, a series of synthetic reactions of solid-liquid phase were car...Recently biospecific affinity chromatography has been widely used for the separation and purification of various enzymes and nucleic acids. In this paper, a series of synthetic reactions of solid-liquid phase were carried out on silica surface, using a macroporous(30 mu m), microspherical silica (8 mu m) as the matrix and gamma-aminopropyltriethoxysilane as the activating agent, the nicotinamide adenine dinucleotide(NAD) was bonded through its amino groups to the carboxylic groups of linked phospholipid which was bonded covalently on aminated support. The bonded stationary phase has high thermal stability, and could be used to separate of nucleotides with good resolution.展开更多
AIM A RP HPLC method was developed for the determination of nicotinamide and vitamin B 6 in compound vitamin B injection. METHODS The sample was analysed on C 18 column. The mobile phase is acetonitrile 0.01 mol/L Na ...AIM A RP HPLC method was developed for the determination of nicotinamide and vitamin B 6 in compound vitamin B injection. METHODS The sample was analysed on C 18 column. The mobile phase is acetonitrile 0.01 mol/L Na 2SO 4 solution (5∶95) adjusted at pH 3.4 by sulfate acid and the detective wavelength is 254 nm. RESULTS A good linearity can be found in the range of 4.26~24.36 μg/ml and 40.26~240.1 μg/ml. The recovery of nicotinamide and vitamin B 6 was 97.53%, 97.87% respectively and the RSD (%) was not more than 1.0. CONCLUSION The method was found to be simple, rapid and reproducible for determination of nicotinamide and vitamin B 6 in compound vitamin B injection.展开更多
文摘Recently biospecific affinity chromatography has been widely used for the separation and purification of various enzymes and nucleic acids. In this paper, a series of synthetic reactions of solid-liquid phase were carried out on silica surface, using a macroporous(30 mu m), microspherical silica (8 mu m) as the matrix and gamma-aminopropyltriethoxysilane as the activating agent, the nicotinamide adenine dinucleotide(NAD) was bonded through its amino groups to the carboxylic groups of linked phospholipid which was bonded covalently on aminated support. The bonded stationary phase has high thermal stability, and could be used to separate of nucleotides with good resolution.
文摘AIM A RP HPLC method was developed for the determination of nicotinamide and vitamin B 6 in compound vitamin B injection. METHODS The sample was analysed on C 18 column. The mobile phase is acetonitrile 0.01 mol/L Na 2SO 4 solution (5∶95) adjusted at pH 3.4 by sulfate acid and the detective wavelength is 254 nm. RESULTS A good linearity can be found in the range of 4.26~24.36 μg/ml and 40.26~240.1 μg/ml. The recovery of nicotinamide and vitamin B 6 was 97.53%, 97.87% respectively and the RSD (%) was not more than 1.0. CONCLUSION The method was found to be simple, rapid and reproducible for determination of nicotinamide and vitamin B 6 in compound vitamin B injection.