High-performance liquid chromatography of tRNAs on novel stationary phases.

High-performance liquid chromatography of tRNAs on novel stationary phases.
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在新型固定相上对 tRNA 进行高效液相色谱分析。

DOI:
10.1016/s0021-9673(01)87433-1
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发表时间:
1985
期刊:
Journal of chromatography
影响因子:
--
通讯作者:
Horváth,C
Horváth,C
中科院分区:
--
文献类型:
--
作者:
elRassi,Z;Horváth,C

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采用新型硅质键合固定相,以水溶液为洗脱剂,采用盐梯度递增或盐梯度递减的梯度洗脱法,分别对一组tRNA进行了静电相互作用色谱和疏水相互作用色谱的快速分离。该固定相由具有表面结合极性部分的微粒大孔二氧化硅组成,含有弱阳离子和/或疏水结合位点。根据结合位点的性质,固定相表现出不同的保留行为和对tRNA的选择性。磷酸盐水溶液用作洗脱剂,在许多情况下,等度洗脱足以分离七种tRNA。添加镁离子或n-癸基甜菜碱的洗脱液导致较低的保留,后者造成更大的增加,在洗脱液的强度。洗脱液的最适pH范围为5.5-6.5。
Rapid separation of a group of tRNAs was carried out on novel siliceous bonded stationary phases with aqueous eluents by using gradient elution with increasing or decreasing salt gradient, as usual in electrostatic interaction chromatography or hydrophobic interaction chromatography, respectively. The stationary phases consist of microparticulate macroporous silica with surface-bound polar moieties, containing weak cationic and/or hydrophobic binding sites. Depending on the nature of the binding sites, the stationary phases exhibit different retention behavior ans selectivity for tRNAs. Aqueous phosphate solutions were used as the eluent, and in many cases isocratic elution was sufficient to separate seven tRNAs. Addition of magnesium ions orn-decylbetaine to the eluent resulted in lower retention, the latter causing a greater increase in the eluent strength. The optimum pH range of the eluent was 5.5–6.5.
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