Benzoin, 100 µg/ml, Acetonitrile, 5ml

Irbesartan-d4 (2,3,5,6-phenyl-d4),ca. 100 µg/mL,MeOH,1mL,

4-Nitrophenol-13C6, 1mg

Dichlorprop-P, 100 µg/ml, Acetonitrile, 1ml