EPA Method 500 Series Internal Standard #5

(6-Methoxy-2-naphthyl)acetic acid, neat, Solvent-neat, Unit 100mg, # of units-1, Cas.no. 23981-47-7

Anion Mix #2

Chlorophyll B, neat, Solvent-neat, Unit 1mg, # of units-1, Cas.no. 519-62-0