Sildenafil citrate,1000 µg base/mL,MeOH,1mL

Dioxathion, 10.0 µg/ml, Ethyl acetate, 10ml

Tianeptine sulphate mono hydrate,1000 µg base/mL,MeOH,1mL,

PCB No. 81, 10µg/ml in Isooctane, 10ml