QC for Chloride and Sulfate Anions Back Catalog number: 59174 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 678940 Diallate, 100 µg/ml, Acetonitrile, 1ml Price on request 685213 4-Methylumbelliferone, 100mg Price on request 52070 Spiking Standard #2 Price on request