PSA-C18-Mix 4 Back Catalog number: 674493 Manufacturer: HPC STANDARDS GmbH Availability: In the manufacturer's stock Price on request - + Recommended 52050 Interference Standard 3 Price on request PFOS-001S Perfluorooctane sulfonic acid, 100µg/ml in MeOH, 1ml Price on request 96081 Chlormequat-1,1,2,2-d4 chloride, 100µg/ml in Water, 1ml Price on request