2,4-Dimethylphenol, 100 µg/ml, Methanol, 5ml

Tritosulfuron, 100mg

Demeton-S-methyl sulfoxide, 10µg/mL in Acetonitrile, 1ml

1,1,1-Trichloro-2,2-bis[4-chloro(13C6)phenyl]ethane, 1.2mL x 100ug/mL, nonane