ICP-MS Tuning Solution #1 EPA 200.8 Back Catalog number: 53122 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended XA17875000AL Trimethoprim, 100μg/mL in Acetonitrile, 1ml Price on request 0490.8-K-IO 2,2'-Dithienyl, 1000µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 492-97-7 Price on request 31391 Dichloromethane Price on request