Filter vial muab cov koob txhaj tshuaj, cov tshuaj lim dej thiab cov qauv vials rau hauv ib yam khoom. Nws hais ntau lub sijhawm thiab zam kev kis kab mob. Peb muaj ntau hom membrane los muab kev sib cais thiab kev ntxuav kom huv rau feem ntau ntawm koj cov kev xav tau xws li tshem tawm cov khoom siv los ntawm cov qauv uas tau npaj rau HPLC thiab UHPLC tsom xam.