Mevinphos, 100 µg/ml, Ethyl acetate, 1ml

(+/-)-Metanephrine hydrochloride,1000 µg base/mL,MeOH,1mL,

0.10M Sodium Hydroxide (NaOH)

2-Hydroxy-propoxycarbazone, 100 µg/ml, Acetonitri