Assay the Methylbenzene Residue in the Taxol (Paclitaxel)

GC: Agilent 6890N- FID
Column: J&W DB-624 GC Column 75m, 0.53mm, 3.00um.
Oven Temp Ramp:
Initial Temp 35 degree C and hold 6 min, ramp to 150 at 40 C/min, hold for 10 min.
Constant Flow rate: 5mL/min
Inlet Temp: 200 degree C
FID Temp: 250 degree C
Solvent: Dimethylfomamide (DMF)
Injection Volume: 1 ul
Split Ratio:1:50
Carrier gas: N2（99.999%）

Found the assay information from the LabNote#53027 in Tech 2005, so missing the time @ Tech: Work Hard, Play Crazy, Study Smart..