Silicon (Si), 1000µg/ml in 2%-HNO3/Water, 100ml

1,1,2-Trimethylcyclohexane, 1000µg/mL, Solvent-cyclohexane, Unit 1mL, # of units-1, Cas.no. 7094-26-0

EPA Method 515/8150/1658 Herbicides

Isoproturon, 100µg/mL, Solvent-c.hexane or ac.nitrile, Unit 1mL, # of units-1, Cas.no. 34123-59-6