Spiking Standard 1 Back Catalog number: 53069 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 79432 Atrazine Price on request 71968 Methylphosphonic acid Price on request 12142.18-100-ME Flurenol-butyl,100 µg/mL,MeOH,1mL, Price on request