GC Conditions: Column: DB -1 (100% - polydimethylsiloxane), Length: 30 m; I.D.: 0.25 mm; Film: 1.0 µm; Injection temp.: 250 °C; Detector (FID) temp.: 275 °C; Column Temp.: 40 °C initial, hold 4 min., then programmed at 10 °C/min. to 250 °C hold for 15min. Sample: 0.2 µl neat