Urban dust - Organic contaminants, 2g

Silver (Ag), 1000µg/ml in 2%-HNO3/Water, 100ml

Ponceau 4R (E 124), 1g

Custom mix of PBDE, 4 components Each in 50µg/mL in Toluene 9135.12 2,2',3,3',4,4',5,6'-Octabromodiphenyl ether PBDE-196 9033.12 2,2',3,3',4,4',5,5',6-Nonabromodiphenyl ether PBDE-206 9035.12 2,2',3,3',4,5,5',6,6'-Nonabromodiphenyl ether PBDE-208 18