2-Nitrobiphenyl-d9,1000 µg/mL,toluene,1mL,

D4-Ochratoxin A, 100 µg/ml, Acetonitrile, 1ml

Ethanol standard in whole blood,3.0g/L,whole blood, 3mL

2,2',3,3',4,4',5,5'-Octachloro[13C12]biphenyl, 1.2ml x 50ug/ml, nonane