Multi-Element Internal Standard /

Diethylene glycol monomethyl ether, 250mg

Potassium (K), 1000µg/ml in 2%-HNO3/Water, 100ml

N-Nitrososarcosine-d3, 100µg/mL, Solvent-acetonitrile, Unit 1mL, # of units-1, Cas.no. 1189971-94-0