18mm ebble septa nthawi zambiri amatanthauza mtundu wotsekedwa womwe umagwiritsidwa ntchito mu ma labotale. Septa ya mphira nthawi zambiri imapangidwa ndi zida ngati silika kapena kupanga mphira ndipo zidapangidwa kuti zikhale zodzaza monga mitsuko kapena mabotolo. Amagwiritsidwa ntchito pogwiritsa ntchito njira yomwe zitsanzo zimafunikira kusungidwa kapena kusanthula pansi pa mikhalidwe yoyendetsedwa. Amagwiritsidwa ntchito nthawi zambiri pamaputala monga ma chromatography, madzi a chromatography, kusungidwa kwachitsanzo, kapena njira zina zowunikira.
