ICP-MS Mix #1

4-n-Butyldibenzothiophene, 500µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 147792-33-4

Flufenacet-ethane sulfonic acid (ESA) sodium, 100µg/mL in Acetonitrile, 1ml

Trimethoprim, >99%, 1g