Perfluoro-n-butanoic acid, 50µg/ml in MeOH, 1,2ml

Trixylyl phosphate, purified ion m/z 424 (heptamethyl),100 µg/mL,isooctane,1mL,

2-Ethylhexyl-d17 2,3,4,5-tetrabromo[13C6]benzoate, 1.2ml x 50ug/ml, toluene

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