Interference Standard 1 Back Catalog number: 53039 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended XA17875000AL Trimethoprim, 100μg/mL in Acetonitrile, 1ml Price on request ACQ-AQ05-015 Ethanol standard in water,0.5g/L,water, 1.5mL Price on request 675748 Dichlofenthion, 100 µg/ml, Ethyl acetate, 5ml Price on request