Ammonium Standard: NH4+, 1000µg/ml in Water, 100ml

n-Alkanes C14-C32 (even + pristane/phytane) 12 Analytes, each 1000 µg/mL in isooctane; units: 1x1mL, 5x1mL, 10x1mL This standard includes all the even n-paraffins + pristane and phytane.

Cephalosporins

2,4-Dimethylaniline