The types of HPLC vials cap septa,Why should replace the septa?

Time:2018/08/09 Pageviews:26 Share:

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The septum needs to be replaced regularly to prevent: air leakage, decomposition, sample loss, column flow or split flow rate drop, ghost peak, and column efficiency. Different septa have different properties:

Loss and temperature optimized septum (BOT): 5183-4757

Wide temperature range, low loss → suitable for mass spectrometry, inlet temperature up to 400 degrees, reducing stickiness at the inlet

Long life septum 5183-4761

Pre-perforation, prolong service life, reduce nucleation; automatic injection is preferred for septum, suitable for overnight operation; injection up to 400 times and 350 degrees high temperature.

Advanced green septum 5183-4759

Long life, high temperature resistance; many injections; reduce the paste of the inlet; temperature up to 350 degrees HPLC vials

The above three kinds of septa are advanced septa, plasma-treated, non-stick mat universal diaphragm: temperature 350 degrees, the number of times is 200, economical.

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