Fenuron, 10 µg/ml, Acetonitrile, 10ml

Marbofloxacin, 100 µg/ml, Methanol, 1ml

4-Ethylphenol-d4-PFB, 1000µg/mL, Solvent-isopropanol, Unit 1mL, # of units-1, Cas.no. 100-58-8

2,3',4,4',5-Pentachloro[13C12]biphenyl, 1.2ml x 50ug/ml, nonane