(-)-Captopril,neat,neat,10mg,

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

O,O-Diethylhydrogenphosphate-13C2, sodium salt

3-Ethyltoluene, 200 µg/ml, Methanol, 1ml