ICP-MS Tuning Solution #1 EPA 200.8

17 alpha(H),21ß(H)-28,30-Bisnorhopane, neat, Solvent-neat, Unit ca. 1µg , # of units-1, Cas.no.

Caffeine-13C3, 5mg

1,2,3,5,6,8-Hexachloronaphthalene,,,,