CLP Semi-Volatile Base/Neutral Surrogate Std Back Catalog number: 23016 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 50454 Nitrate & Nitrite as N Price on request 94587 PCB Congeners 1000 ppb Price on request 0615.27-100-IO 17 alpha(H)-22,29,30-Trisnorhopane, 100µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 53584-59-1 Price on request