化学
琼脂糖
色谱法
硼氢化钠
琼脂
吸附
水解
硼氢化
碱金属
分子筛
有机化学
催化作用
细菌
遗传学
生物
作者
Jerker Porath,Jan‐Christer Janson,Torgny L s
标识
DOI:10.1016/s0021-9673(00)95547-x
摘要
A method for producing alkali- and thermo-stable, insoluble spherical agar particles with very low adsorption capacity (tested with cytochrome C) is described. Sulphate ester groups present in the original agar are removed by alkaline hydrolysis of cross-linked agar, in bead form, at an elevated temperature. The reaction is performed in the presence of sodium borohydride to prevent simultaneous oxidation. Further reduction of the adsorption capacity may be accomplished by treatment of the gel with lithium aluminium hydride in dioxane. Desulphated and reduced agar and agarose gels can be packed in beds with excellent flow and molecular sieve properties.
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