多选题
Preparethetankbyliningthewallswithsheetsoffilterpaper;pourthemobilephaseintothetank,saturatingthefi
lerpaperintheprocess,toadepthof5to10mm,colsethetankandallowtostandat2012to2512forIh.
(saturatedconditions).Whatarethepurposesoftheaboveprocedure.?