Dichlorometan – metoda oznaczania

Metoda polega na adsorpcji par dichlorometanu na węglu aktywnym, desorpcji disiarczkiem węgla i analizie chromatograficznej (GC-FID) otrzymanego roztworu. Oznaczalność metody wynosi 8,8 mg/m3.

A worker’s exposure to airborne dichloromethane is determined by using an active charcoal tube (200/50 mg sections). Samples are collected at a maximum flow rate of 1 L/h until a maximum collection volume of 6 L is reached. After sampling the active charcoal tube is desorbed in carbon disulfide. Analysis is con-ducted with gas chromatography using a flame ionisation detector (GC-FID). The working range is 8.8 to 176 mg/m3 for a 6-L air sample.