Atrazine-2-hydroxy D5, 100µg/mL in MeOH, 1,1ml

Sertralin-HCl, 100μg/ml in Acetonitrile, 5ml

1,4-Bis(2-ethylhexyl)benzene, 1000µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 87117-22-4

EPA Method 502/524 High Conc VOC Mix #7, 2000µg/ml in MeOH,1ml