Table 2 Plackett-Burman experimental design for GC-MS
Experiment No. | Variables | |||
|---|---|---|---|---|
Helium flow rate | Injector port temperature | Derivatization reaction time | Derivatization reaction temperature | |
1 | + | − | − | + |
2 | + | + | − | − |
3 | + | + | + | − |
4 | − | + | + | + |
5 | + | − | + | + |
6 | − | + | − | + |
7 | − | − | + | − |
8 | − | − | − | − |