Spike Sample Standard 1 Back Catalog number: 53028 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 98740 ASTM D-2887 Column Test Standard Price on request 2514.7-K-ME 4-Hydroxybenzoic acid, 1000µg/mL in MeOH, 1ml Price on request 72120 Captopril Price on request