Hamilton HxSil C8 columns are well end-capped for retention time reproducibility and durability. The C8 demonstrates excellent selectivity needed for complex sample mixtures and gives shorter retention times than a C18.
The Hamilton HxSil C8 column meets USP L7 requirements.
Antibiotics
The separation of oxytetracycline and tetracycline using an
HxSil C8 column is shown in Figure 7.
Steroids
Four steroids are separated on a Hamilton HxSil C8 (Figure 12) column. Excellent selectivity is demonstrated (baseline separation of all four steroids). Two of the steroids, 4-androstene-3,17-dione (peak 2) and
testosterone (peak 3) differ only by the oxidation state at the C-17 position; a carbonyl and hydroxyl group respectively. Reduced run times are observed with a C8 column versus a C18 (4.5 minute run time with a C8 versus 7.5 with a C18).
Silica-based columns for general
separations
Separation
of closely related PAH's
Better
retention of poorly retained compounds
Separation
of neutral, acidic and basic compounds without tailing
(tailing factor of less than 2.0).
Product Features
Two
particle sizes: 3 and 5 µm.
Five column
internal diameters: 2.1 to 21.5 mm.
Analytical
and semiprep/preparative guard columns in 316 stainless steel.
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