Barcelona, Spain) using GLC (CE 5300 HT, Carlo Erba Instruments chromatograph, Milano, Italy) with an initial temperature of 100°C for 1 min, which was increased 8°C/min to 160°C, and was then held at 160°C for 5 min.
Barcelona,Spain) using GLC (CE 5300 HT, Carlo Erba Instrumentschromatograph, Milano, Italy) with an initialtemperature of 100°C for 1 min, which was increased8°C/min to 160°C, and was then held at 160°C for 5 min.