PURIFICATION OF ORGANIC COMPOUNDS BY SURFACTANT MEDIATED PREPARATIVE HPLC
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United States of America Patent
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Aug 18, 2016
app pub date -
Sep 18, 2014
filing date -
Sep 20, 2013
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A sample is provided 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 disclosure 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.
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