Mixed Calibration Standard 5 Back Catalog number: 53057 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended L-PFTRDS Sodium perfluoro-1-tridecanesulfonate, 50µg/ml MeOH, 1,2ml Price on request 70798 Phosmet, 1000µg/ml in MeOH, 1ml Price on request 682228 4-Hydroxybenzophenone, 100mg Price on request