Sulfite (SO32-),1000µg/mL in Water, 3 x 20ml

1,2,3,7,8-Pentachloro(13C10)naphthalene, 1.2mL x 50ug/mL, nonane

Nitrate as NO3-

Daily Quality Control Standard (with 3 Deuterated Compounds Internal Standard) 14 Analytes + 3 ISTD, each Wt.% as listed; units: 1x10mL, 5x10mL neat Name Wt.% Name Wt.% n-Hexane