GC/MS Calibration Standard Mix #1 Back Catalog number: 43027 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 1028.16-500-IO 9-Ethylphenanthrene,500µg/mL,isooctane,1mL, Price on request 50756 Spiking Standard #2 Price on request C10968500 Carbamazepin, 100mg Price on request