The establishment of EVISA is funded by the EU through
the Fifth Framework Programme (G7RT- CT- 2002- 05112).
Supporters of EVISA includes:
The particulate material packed inside the column; also called the stationary phase. This usually consists of silica- or polymer-based particles, often chemically bonded with a chemical function al group. For analytical work, 3µm or 5µm spherical particles are used; for semi-preparative, 10µm or larger spherical or irregular particles are favored. The most common packings are as follows:
Octadecyl (ODS, C18) the most popular phase, used for reversed-phase HPLC
Octyl (C8) more polar than C18, also a popular reversed-phase column
TMS (methyl, C1) weakly retentive in reversed-phase
Silica (Si) unbonded silica used in normal phase mode, popular for preparative LC.
Phenyl, Cyano, Amino specialty phases used for specific applications.
The term "column packing" was found in the following pages: