申请人:Bidlingmeyer Brian
公开号:US20050011836A1
公开(公告)日:2005-01-20
The present invention provides silica-based reversed-phase HPLC methods that lead to higher retention of the analytes in the column and longer column lifetimes than usually observed under medium to high pH aqueous mobile phase conditions. The inventive methods comprise eluting the HPLC column using an aqueous mobile phase comprising at least one fluorinated additive. Preferred additives are polyfluorinated alcohols such as 2,2,2-trifluoroethanol and 1,1,1,3,3,3-hexafluoroisopropanol. The methods of the present invention may be used for analyzing, separating, purifying, and/or isolating small organic molecules, natural products, as well as biomolecules such as polypeptides, oligonucleotides and polynucleotides (e.g., DNA fragments).
本发明提供了基于二氧化硅的反相高效液相色谱法,与通常在中高 pH 值水性流动相条件下观察到的结果相比,该方法可使分析物在色谱柱中的保留率更高,色谱柱寿命更长。本发明的方法包括使用包含至少一种含氟添加剂的水性流动相洗脱高效液相色谱柱。首选添加剂为多氟化醇,如 2,2,2-三氟乙醇和 1,1,1,3,3,3-六氟异丙醇。本发明的方法可用于分析、分离、纯化和/或分离小分子有机物、天然产物以及生物大分子,如多肽、寡核苷酸和多核苷酸(如 DNA 片段)。