Trace Nitrogen in Low Boiling Solvent

Imidacloprid guanidine hydrochloride, 100 µg/ml,

3-Methylphenanthro[3,4-c]phenanthrene, 100µg/mL, Solvent-toluene, Unit 1mL, # of units-1, Cas.no. 83844-21-7

Calcium (Ca)