Closantel sodium, 100mg

2,2',3,3',4,4',5,6,6'-Nonabromo[13C12]diphenyl ether, 1.2ml x 50ug/ml, toluene

1,2,3,4,6,7-Hexachloronaphthalene, 50µg/ml in nonane, 1,2ml

PAH Internal Standard Spiking Solution, 1.2ml, isooctane