The Stability of Chlorobutanol Solution in Polyethylene and Glycol-modified Polyethylene Terephthalate Containers

Polyethylene과 Glycol-modified Polyethylene Terephthalate 용기내에서의 Chlorobutanol용액의 안정성

There have been many difficulties in utilization of polyethylene (PE) container for volatile ingredients because of its high permeability. We selected glycol-modified polyethylene terephthalate (PETG) lately being used and evaluated the stability of 0.5% chlorobutanol solution for PETG. We used PE bottle, glass flask and rubber stoppered vial for comparison and assayed chlorobutanol contents of the samples stored at various temperatures for nine weeks by HPLC method. The results indicated that the stability of chlorobutanol in PETG container was almost similar to that in glass flask, and was superior to that in PE bottle and rubber stoppered vial.