Sulfate (SO42-)

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

3,4,5-Trimethylheptane

2,4-Dichlorobenzyl chloride,1000 µg/mL,isooctane,1mL,