Phosmet-oxon, 100 µg/ml, Isooctane, 1ml

Metribuzin-desamino-diketo

Methoxychlor (13C12), 100µg/ml in Nonane, 1,2ml

Perfluoro-n-[1,2,3,4-13C4]butanoic acid, 50µg/ml in MeOH, 1,2ml