Propan – metoda oznaczania

Metoda polega na adsorpcji propanu na węglu modyfikowanym, desorpcji n-heksanem i analizie chromatograficznej otrzymanego roztworu. Oznaczalność metody wynosi 180 mg/m3.

Workers’ exposure to airborne propane is determined with an Anasorb CMS tube (400/200 mg sections). Samples are collected at a maximum flow rate of 1.5 L/h until a maximum collection volume of 3 L is reached. After sampling, the Anasorb CMS tube is desorbed in n-hexane. The obtained solution is analyzed with gas chromatography (GC-FID). The working range for a 3-L air sample is 180–3600 mg/m3.