Hamilton 0.5 μl, Model 7000 KH OC Syringe, Knurled Hub Needle, 32 gauge, 100 mm, point style 3 with Certificate of calibration

On-column injection employs the direct introduction of the liquid sample into the column. This is very useful for the analysis of thermally unstable samples and avoids boiling point discrimination. On-column injection requires special syringes