Preparation method of vancomycin with high purity
A vancomycin, high-purity technology, applied in the field of preparation of high-purity vancomycin, can solve the problems of affecting the separation efficiency, low production efficiency, long separation time, etc., and achieve the purpose of increasing the number of plates, high production efficiency, and time-consuming short effect
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Embodiment 1
[0039] Example 1NH 4 HCO 3 mobile phase concentration
[0040] Take 2L of vancomycin chromatographic purity of 84%, concentration of 25-30g / L decolorization solution, put it on the column with a loading volume of 30g / L, between pH3.0-4.0, filter with 0.45μm filter membrane, and decolorize A 5.5mm×90cm plexiglass chromatography column of UniPMM50CAR filler resin. After adsorption, wash with pure water with a flow rate of 2.5 times the column volume / hour and 2 times the column volume.
[0041] After washing with pure water, use 0.3% (w / v) NH 4 HCO 3 aqueous solution for pre-washing.
[0042] After prewashing, use 5 times column volume of 0.4% NH 4 HCO 3 Aqueous solution was used as mobile phase to elute vancomycin. Detect the vancomycin purity of the chromatographic collection liquid by HPLC, the detection wavelength is 280nm, when the absorbance rises to 40, start to collect the chromatographic liquid in sections, adjust the pH to 3.0-3.5 with hydrochloric acid, store i...
Embodiment 2
[0047] Example 2NH 4 HCO 3 Mobile phase elution speed
[0048] Take 2L of vancomycin chromatographic purity of 84%, concentration 25-30g / L decolorization solution, put it on the column with a load volume of 30g / L, pH between 3.0-4.0, filter through a 0.45μm filter membrane, and pass the decolorization solution through the UniPMM50CAR A 5.5cm×90cm glass chromatography column of resin. After adsorption, wash with pure water with a flow rate of 2.5 times the column volume / hour and 2 times the column volume.
[0049] After washing with pure water, use 0.3% (w / v) NH 4 HCO 3 aqueous solution for pre-washing.
[0050] After prewashing, wash with 0.4% (w / v) NH 4 HCO 3 Aqueous solution was used as mobile phase to elute vancomycin. Carry out HPLC to detect the vancomycin purity of the chromatographic collection liquid, the detection wavelength is 280nm, when the absorbance rises to 40, start to collect the chromatographic liquid in sections, adjust the pH to 3.0-3.5 with hydroch...
Embodiment 3
[0055] Take 2L of vancomycin chromatographic purity of 84%, concentration 25-30g / L decolorization solution, put it on the column with a load volume of 30g / L, pH between 3.0-4.0, filter through a 0.45μm filter membrane, and pass the decolorization solution through the UniPMM50CAR A 5.5cm×90cm glass chromatography column of resin. After adsorption, wash with pure water with a flow rate of 2.5 times column volume / hour and 5 times column volume.
[0056] After washing with pure water, use 0.3% (w / v) NH 4 HCO 3 aqueous solution for pre-washing.
[0057] After prewashing, use 0.4% (w / v) NH 4 HCO 3 Aqueous solution was used as mobile phase to elute vancomycin. Collect the eluted part in stages with an elution collection tank, and detect it with an ultraviolet detector. The wavelength of the detector is 280nm. Adjust the hydrochloric acid to 3.0-3.5 and store at 4°C.
[0058] table 3
[0059]
[0060] Table 3 is according to the preparation method of vancomycin in embodimen...
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