The GC–MS was equipped with an Agilent HP-5 MScolumn (30 m 0.25 mm0.25 mm) and the column temperature program was as follows: initial temperature 50 C (held for 0.5 min) to 150 C at a rate of 20 C min1
The GC–MS was equipped with an Agilent HP-5 MScolumn (30 m 0.25 mm0.25 mm) and the column temperatureprogram was as follows: initial temperature 50 C (held for 0.5 min)to 150 C at a rate of 20 C min1