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SS-174 PTFE-Faced Septa

SS-174 PTFE 表面隔垫

货号
22654
规格纯度
diam. 6 mm ( 1/4 in.)
参考价格
3001.94 *本价格含增值税费
促销
数量
-+
产品介绍:

产品说明

一般描述

PTFE-faced septa are suitable to overcome the degradation due to prolonged high temperatures which occurs in silicone rubber septa. The degradation results in baseline drift and additional peaks. It is generally fixed with the PTFE faced towards the column packing.
PTFE-faced septa are designed for applications where greater inertness is required. The off-white silicone rubber body (123 mil thick) provides plenty of support for the yellow PTFE face (2 mil thick). After the PTFE is ruptured during injection, some bleeding may occur. Because this bleed increases as more of the rubber is exposed, we recommend using a needle guide to reduce the size of the punctured area. For use with 200 ℃ to 300 ℃ inlet temperatures.

应用

Glass vials equipped with stir bars may be sealed with PTFE faced silicone septa for solvent drop microextraction analysis of water samples.

产品性质

物料off-white silicone body (123 mil thick)
yellow PTFE face (2 mil thick)
包装pkg of 100 ea
直径6 mm ( 1/4  in.)

Sigma-Aldrich

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