CLP Semi-Volatile Base/Neutral Surrogate Std Back Catalog number: 20006 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 83536 Acetaldehyde-DNPH Price on request 59394 Anions Mix Price on request L18000020CY Pesticide-Mix 20, 10 ng/µl, 10ml Price on request