Eplerenon,100 µg/mL,MeOH,1mL,

2,2',3,4,4',5,6'-Heptachlorobiphenyl ,100 µg/mL,isooctane,1mL,

2-Hydroxyibuprofen, 10mg

Nitrite as NO2-, 1000µg/ml in water, 100ml