Silica gel and carbon column packings for use in high-performance liquid chromatography
Silica gel and carbon column packings for use in high-performance liquid chromatography
复制标题
高效液相色谱用硅胶和碳柱填料
DOI：
--
复制
发表时间：
1990
期刊：
影响因子：
--
通讯作者：
I. Novák
中科院分区：
文献类型：
--
作者：
D. Berek;I. Novák
概述对几类最重要的高效液相色谱柱填料的基本性能进行了简要的比较。详细讨论了全多孔硅基和碳基吸附剂的物理性质，特别是其孔结构的特殊性。阐明了海绵状吸附剂结构优于微粒结构的优点。提出了具有厚多孔层的薄膜吸附剂的非常规概念，特别是表面银纹吸附剂的概念。除了在HPLC中的特定应用所需的尺寸的孔之外，后一种材料还包含大的且相对深的裂缝，其宽度比特定平均孔径大2至5倍。本文介绍了一种实验用的银纹硅胶，并展示了它的一些色谱性能。
SummaryThe basic properties of the most important groups of HPLC column packings are briefly compared. The physical properties of totally porous silica and carbon-based sorbents, especially the pecularities of their pore structure, are discussed in more detail. The advantages of the sponge-like sorbent structure over a corpuscular structure are elucidated. The unconventional concept of pellicular sorbents with a thick porous layer and, especially, the concept ofsuperficially crazed sorbents is presented. Besides pores of the sizes that are necessary for the particular application in HPLC, the latter material also contains large and relatively deep cracks with widths two to five times larger than the specific mean pore diameters. An experimental crazed silica gel is presented and some of its chromatographic properties are shown.