The oven temperature for the gas chromatograph was initially maintained at 60 °C for 2 min, then ramped at 5 °C min−1 to 300 °C and maintained for 5 min.
The oven temperature for the gas chromatograph was initially maintained at 60 °C for2 min, then ramped at 5 °C min−1 to 300 °C and maintained for 5 min.