N-Nitroso-N-ethylurea

Te, 1000 µg/mL in 5% HNO3, 500ml

2,3,3',4,5,5'-Hexachloro-4'-methoxybiphenyl, 1.2ml x 50ug/ml, nonane

Ethanol standard in serum,1.5g/L,serum, 1.5mL