Abstract
Capillaries with inner diameters of 550 μm have successfully been packed with 1.5-μm octadecyl silica particles using frits made of macroporous polymers by the UV photopolymerization of a solution of glycidyl methacrylate and trimethylolpropane trimethacrylate. This type of frit is found superior to one made of low-melting point poly-(styrene-co-divinylbenzene) beads. Bubble formation is not observed to occur within these capillary columns under our experimental conditions. Separations can be achieved with sample injection volumes as high as 1 μL. To demonstrate its semipreparative use, a mixture of 500 nL of taxol (20 mM) and its precursor, baccatin III (30 mM), is separated using such a column with a Tris buffer.
Original language | English (US) |
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Pages (from-to) | 1987-1992 |
Number of pages | 6 |
Journal | ANALYTICAL CHEMISTRY |
Volume | 73 |
Issue number | 9 |
DOIs | |
State | Published - May 1 2001 |
Externally published | Yes |
ASJC Scopus subject areas
- Analytical Chemistry