GFAA Spike Standard

2,3,3',4,4',5',6-Heptabromodiphenyl ether, 1.2ml x 50ug/ml, toluene

1-(4-Isopropylphenyl)urea, 100 µg/ml, Acetonitrile, 1ml

Perfluoro-n-heptanoic acid, 1.2ml x 50ug/ml, methanol