Pre-slit Red PTFE/White Silicone Septa for 2ml vial

Pre-slit Red PTFE/White Silicone Septa for 2ml vial

Pre-slit ptfe/silicone septa
Diameter: 8mm, 9mm, 10mm, 11mm
Thickness: 1mm, 1.5mm

Rated 4.8/5 based on 376 customer reviews
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Content
Pre-slit septa are offered in many of the same formulations as for non-slit PTFE/silicone septa and shares most of the physical and chemical characteristics. The septum is provided with a thin 0.005” PTFE layer laminated to highly pure silicone, and slit through the center for easier needle penetration and to release the vacuum that forms when a large volume of sample is withdrawn from a vial. This septum provides chromatographic characteristics similar to that of a septum without a slit, except that the ability to withstand exposure to aggressive solvents is slightly lessened. Pre-slit septa are highly recommended for Shimadzu, Hitachi, and other autosamplers with thin gauge needles.
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