Total Kjeldahl Nitrogen as N

Oxytetracycline, 96%,1000 µg/mL,acetonitrile,1mL,

1,3-Dimethylphenanthrene, 500µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 16664-45-2

Pristane, 100mg