Application

It may be used in a study done to understand the variations of capillary on-column fixed needle injection system in gas chromatography.

General description

The fixed needle design of this Hamilton syringe minimizes dead volume. Stainless steel needle, 12.5 cm (for Agilent/HP injectors) or 7.5 cm (for Carlo Erba injectors) × 0.24 mm O.D. (32 ga.), 90° tip. Use with 0.32 mm I.D. or larger columns.

On-Column injection is generally performed to avoid vaporization of samples. This method involves injecting the cold sample directly on the column. Using retention gaps allows autosamplers to use on-column sample injection method. In this system, a 32-gauge needle is inserted in a cool narrow bore injection valve and then into capillary column.

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