The effect of extraction time can be seen in Fig. 2. Considering
experimental errors, the equilibrium is achieved at 10 min only
for CHCl2Br, CHClBr2 and CHBr3. In 5 min, the CAR–PDMS fibre extracts
the maximum amount of mass of chloroform. The differences
between the molecular weights of the analytes were not
significant enough to reach varied equilibrium time.