alpha-BHC-13C6,100 µg/mL,n-nonane,1mL,

Theophylline, 100µg/mL, Solvent-methanol, Unit 1mL, # of units-1, Cas.no. 58-55-9

Chlorpyrifos, 100 µg/ml, Acetonitrile, 5ml

Individual Calibration Solutions , 500ul, nonane