Phenthoate, 100 µg/ml, Acetonitrile, 5ml

3,4,5-Trichloro[13C6]phenol, 1.2ml x 100ug/ml, isooctane

4-Ethylguaiacol, 100 µg/ml, Acetonitrile, 1ml

Sulfosulfuron, 100µg/ml in Acetonitrile, 1ml