The alcohol and aliphatic concentrations in the diluted samples
were analyzed using a Varian 430 GC equipped with a flame
ionization detector (T/K = 523.15) and a Varian CP-SIL 5CB column
(25 m 1.2mm). The oven temperature was set at T/K = 313.15 for
2 min, then increased to T/K = 423.15 at a rate of 40 K min1
. The
temperature was kept constant for 2 min at T/K = 423.15. The
injector temperature was T/K = 403.15. The carrier gas was helium
with a constant flow rate of 2 mL min1
. All samples were analyzed
at least three times and the relative standard deviation was found
to be smaller than 1.5%. After each 12 samples, a sample of known