Sigma-Aldrich Thermogreen® LB-2隔垫，固体圆盘，直径11.5 mm（11/24 in.），包装50个

产品概述

隔膜是注射器进样系统中非常重要的部件。隔膜通常由硅橡胶、氯丁橡胶或氟橡胶等弹性自密封材料制成。隔膜适用于方便地引入样品而不会导致系统泄漏。不适当的隔膜在毛细管入口的高温条件下会分解，导致基线干扰和色谱图中的鬼峰。

它是经典Thermogreen LB-1隔垫的改良版。
可以在较宽的入口温度范围内（100°C至350°C）保持极低流失经过预处理，开封即用易于进针，并具有较高的穿刺耐受次数（适用于自动进样）Supelco独有的橡胶材料配方

应用领域

Thermogreen^® LB-2 Septa is suitable for the following applications:
To minimize extraction onto or loss of analytes off the solid phase microextraction (SPME) fiber from the vial during analysis by GC-MS.Thermo-resistant septa is used in GC instrument to avoid carrier gas leaks, extraneous peaks and phthalate contamination.PMID 14637342Thermo-resistant septa along with thick needle protector is used in GC instruments to avoid damage irreversibly caused by microsyringe.PMID 12885059It is also used in the influent sampling ports in gas chromatographs.

技术规格