Calibration Standard Mix 2 Back Catalog number: 52044 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 678084 Chlorpyrifos-methyl, 100 µg/ml, Acetonitrile, 1m Price on request 50817 Anions Mix Price on request T010095 Tazobactam, 250mg Price on request