HPLC \ / GC VIals na sensa bụ nke pụrụ iche iko ọpụrụiche chromatography dị elu (hplc) yana ngwa gas (GC). Ezubere Vals ndị a iji jide nlele maka nyocha ma nweekwa akụkụ nke ntụtụ maka ntụtụ. A na-eji iko mmiri ndị a mee ihe dị elu ma gosipụta okpu na nkebi nke septim Prumption ma ọ bụ nsị.
