1,4-Dioksan – metoda oznaczania

Metoda polega na adsorpcji par 1,4-dioksanu na węglu aktywnym, desorpcji roztworem propan-2-olu w disiarczku węgla i analizie chromatograficznej (GC-FID) otrzymanego roztworu. Oznaczalność metody wynosi 5 mg/m3.

A worker’s exposure to airborne 1,4-dioxane is determined by using an active charcoal tube (100/50 mg sections). Samples are collected at a maximum flow rate of 12 L/h until a maximum collection volume of 12 L is reached. After sampling the active charcoal tube is desorbed in carbon disulfide/propan-2-ol (98:2). Analysis is conducted with gas chromatography using a flame ionisation detector (GC-FID). The working range is 5 to 100 mg/m3 for a 12-L air sample.