Uyini umkhawulo wokusebenzisa ama-polar solvents afana ne-DMSO, DMF?

Ngokuvamile, kunconywa ukusebenzisa isigaba se-mobile lapho isilinganiso se-polar solvents esingadluli ku-5%. I-polar solvents ifaka i-DMSO, DMF, THF, itiye njll.