Arsenic (As)

n-Octadecane, ?13C: -30.71, 150µg/mL, Solvent-cyclohexane, Unit 1mL, # of units-5, Cas.no. 593-45-3

Sodium tetraethylborate, neat, Solvent-neat, Unit 1g, # of units-2, Cas.no. 15523-24-7

3,3'-Dimethyl-4,4'-diaminodiphenylmethane,100 µg/mL,acetonitrile,1mL,