D8-Ciprofloxacin hydrochloride hydrate, 100 µg/ml,

Phosphamidon 100 µg/mL in Acetonitrile, 1ml

n-Hydrocarbon Mix C8 - C40, 1000µg/ml in in MeCl2 : CS2 [3:1], 1ml

Formaldehyde-DNPH Level 6 (10ug/mL)