D3-Metsulfuron-methyl, 100 µg/ml, Acetonitrile,

6-Methylbenzo[a]pyrene, 200µg/mL, Solvent-toluene, Unit 1mL, # of units-1, Cas.no. 2381-39-7

2,4-Dimethylphenol-d10, 1000µg/mL, Solvent-isopropanol, Unit 1mL, # of units-5, Cas.no. 1219794-86-1

2,2',3,3',5,5',6-Heptachloro[13C12]biphenyl, 1.2ml x 50ug/ml, nonane