Fluorene, 10 µg/ml, Cyclohexane, 10ml

Sulfur, 50µg/g (0.0050 wt%) in Diesel Fuel, 100ml

2-(tert-Butylamino)-4-(cyclopropylamino)-6-( methylthio)-1,3,5-triazine, >98%, 5g

Phoxim, 100 µg/ml, Acetonitrile, 1ml