Multi-Element Internal Standard /

3,4-Dihydrobenzo[ghi]perylene, neat, Solvent-neat, Unit ca. 10µg , # of units-1, Cas.no. 16310-65-9

5ß(H)-Cholan-24-ol, neat, Solvent-neat, Unit 25mg, # of units-1, Cas.no. 3110-99-4

1,4,5,8-Tetrachloronaphthalene (96%), 1.2ml x 48ug/ml, nonane