EPA Method 531.1 - Performance Check Solution

Sodium (Na), 1000µg/ml in 2%-HNO3/Water, 100ml

2-Chloro-1,3-dinitrobenzene, 1000µg/mL, Solvent-isopropanol, Unit 1mL, # of units-1, Cas.no. 606-21-3

Milbemectin A4, 100 µg/ml, Acetonitrile, 1ml