EPA Method 622.1 Analytes

Ursolic acid, neat, Solvent-neat, Unit 10mg, # of units-1, Cas.no. 77-52-1

Fenitrothion, 100µg/mL in Acetonitrile, 1ml

GRO Mixture 4, UST Modified Gasoline Range 10 Analytes, each 1000 µg/mL in methanol; untits: 1x1mL, 1x5mL 1300.6 Benzene [71-43-2] 1265.8 p-Xylene [106-42-3] 1264.7 Toluene [108-88-2] 1270.9 1,2,4-Trimethylbenzene [95-63-6] 1268.8 Ethylbenzene [1