Sulfamethazine-d4, 1mg

n-C30/n-C20, n-Triacontane/n-Eicosane (Integration control) 1000 µg n-Triacontane and 2000 µg n-Eicosane in 1mL isooctane n-Triacontane/n-Eicosane = 1:2

4-n-Butylbenzoic acid, neat, Solvent-neat, Unit 1g, # of units-1, Cas.no. 20651-71-2

Phenthoate, 100 µg/ml, Toluene, 1ml