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    • 83. 发明申请
    • PRE-PACKED, SEALED RADIAL FLOW CHROMATOGRAPHY COLUMN
    • 预包装,密封的径向流动色谱柱
    • WO2018081474A1
    • 2018-05-03
    • PCT/US2017/058613
    • 2017-10-26
    • SEPRAGEN CORPORATION
    • SAXENA, RenuZUFFI, DavidSAXENA, Vinit
    • B01D15/08B01D15/18B01D15/20B01D15/22B01D15/32G01N30/02G01N30/38
    • Provided herein in some embodiments is a column including a housing assembly and a cartridge assembly. The housing assembly can include a housing top, a housing bottom, and a housing siding. The housing siding can be fixedly coupled to the housing top and the housing bottom forming hermetic seals therebetween. The cartridge assembly can include a cartridge top, an outer frit, and an inner frit disposed within the outer frit. A toroidal space can defined by the cartridge top, the outer frit, the inner frit, and the housing bottom. The toroidal space can be configured to hold a stationary phase for radial flow column chromatography. Also provided herein in some embodiments is a process including assembling the cartridge assembly, assembling the housing assembly about the cartridge assembly, and pressure testing the column. In some embodiments, the process can further include charging the toroidal space with a stationary phase.
    • 这里在一些实施例中提供了一种包括壳体组件和筒组件的柱。 壳体组件可以包括壳体顶部,壳体底部和壳体侧壁。 壳体侧壁可以固定地联接到壳体顶部和壳体底部,从而在其间形成气密密封。 盒组件可以包括盒顶部,外部玻璃料和设置在外部玻璃料内的内部玻璃料。 环形空间可由盒顶部,外部玻璃料,内部玻璃料和外壳底部限定。 环形空间可以配置为保持径向流动柱色谱的固定相。 本文在一些实施例中还提供了一种方法,包括组装所述筒组件,将所述外壳组件组装在所述筒组件周围,以及对所述柱进行压力测试。 在一些实施例中,该过程可以进一步包括以固定相充电环形空间。
    • 87. 发明申请
    • PURIFICATION OF ORGANIC COMPOUNDS BY SURFACTANT MEDIATED PREPARATIVE HPLC
    • 通过表面活性剂介导的制备型HPLC纯化有机化合物
    • WO2015040635A3
    • 2015-06-04
    • PCT/IN2014000607
    • 2014-09-18
    • DAVULURI RAMAMOHAN RAO
    • ANWER MOHAMMED KHALID
    • B01D15/08B01D15/32G01N1/18
    • C07K1/20B01D15/325B01D15/42C07K7/23
    • There are only two ways to increase the amount of sample that can be purified by preparative reversed phase high performance liquid chromatography (Prep-RP-HPLC) in a single run in spite of recent advances in the production of reversed phase derivatized silica stationary supports: (1) The traditional approach is to use a bigger column (greater amount of stationary phase); and (2) Use displacement chromatography which (while labor intensive to develop) uses the stationary phase more effectively. This invention describes a unique Prep-RP-HPLC technique that uses a C-18/ C-8 derivatized silica coated with a surfactant such as Triton X-100 to result in 7 to 10 fold increase in sample loading (of the crude mixture of organic compounds including synthetic crude peptides) in contrast to the conventional Prep-RP-HPLC technique. This increase in sample loading capacity and output is due to the additional surrogate stationary phase characteristic of the C-18/ C8 adsorbed (bound) surfactant. The surfactant is bound to the C-18/ C-8 chains of the stationary phase via Van der Waals forces (hydrophobic interactions) and ionic interactions with the residual silanols of the stationary phase.
    • 尽管反相衍生的二氧化硅固定支架的生产最近有进展,但是在单次运行中,只有两种途径可以通过制备型反相高效液相色谱法(Prep-RP-HPLC)来提高样品的量。 (1)传统的方法是使用较大的色谱柱(更大量的固定相); 和(2)使用置换色谱法(尽管劳动密集型开发)更有效地使用固定相。 本发明描述了独特的Prep-RP-HPLC技术,其使用涂覆有表面活性剂如Triton X-100的C-18 / C-8衍生的二氧化硅,导致样品负载量增加7至10倍 有机化合物,包括合成粗肽)与传统的Prep-RP-HPLC技术相反。 样品负载能力和产量的增加是由于C-18 / C8吸附(结合)表面活性剂的附加替代固定相特征。 表面活性剂通过范德华力(疏水相互作用)和与固定相的残余硅烷醇的离子相互作用与固定相的C-18 / C-8链结合。