Gastight syringes are ideal for dispensing both liquids and gases. They have a precision-machined polymer plunger tip, often PTFE, which creates a leak-free seal. With the tight fit, the tip essentially wipes the interior of the syringe barrel free of sample. This feature is useful for samples with dissolved or suspended molecules because it reduces the chance a deposit will occur and result in a damaged plunger.
The 1700 series syringes are the Gastight version of the original 700 series syringes. This series of syringes is ideal for dispensing volumes from 1 μL up to 500 μL. A variety of different terminations and needle options are available in this series.