Total Kjeldahl Nitrogen as N

Sodium perfluoro-1-hexanesulfonate, 1.2ml x 50ug/ml, methanol

N-Nitroso-N-ethylaniline

1,2,4-Tribromobenzene, 50µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 615-54-3