Ukufanisa
The slit allows ambient gas to equalize the gas in the vial so that a vacuum is not created in the vial from the tight seal around the needle. Uma i-coring noma i-clogging isuka enanini elinqunu noma inaliti yenaliti kusuka ku-septable septa ukukhathazeka, khona-ke ukukhetha i-septum yangaphambi kokukhanya kuyindlela engcono.
I-PTFE \
silicone ene-septum eshibilika ivumela ukungena kalula kokungeniswa kwemali kanye nokukhipha i-vacuum lelo hlobo lapho kuvela umthamo omkhulu wesampula kusuka ku-vial. Le Secum ihlinzeka ngezimpawu ze-Chromatographic ezifana neleptum ngaphandle kwe-slit ngaphandle kokuthi amandla okumelana nokuvezwa kwezikhathi ezinolaka ancishiswe kancane. I-Pre-Slit Septa ituse ukukhiqizwa okungcono kokuvuselela ukuvumelanisa nokuzalwa kwe-autosamplers ukuhoxisa okukhulu kunesampula yesampula kusuka ku-2ml vial, ngenxa ye-cavitation engenzeka (vacuum).