Calcium Hardness

Phenkapton, 10.0 µg/ml, Acetonitrile, 10ml

Heptachlor-exo-epoxide, 100 µg/ml, Ethyl acetate,

Daily Quality Control Standard (without Internal Standard) 13 Analytes, each Wt.% as listed; units: 1x10mL, 5x10mL neat Name: Wt. % Name Wt. % 1232.6 n-Hexane