D5-threo-Chloramphenicol, 100µg/ml, Acetonitrile, 1ml

[13C3]-Cyanuric Acid, 1.2ml x 100ug/ml, water

Anions Solution B

Daily Quality Control Standard (without Internal Standard) 14 Analytes, each Wt.% as listed; units: 1x10mL, 5x10mL neat Name Wt.% Name Wt.% n-Hexane 12 Toluene 9 n-Heptane 20 Eth