15N3-Atrazine, 100 µg/ml, Acetonitrile, 1ml Back Catalog number: 678256 Manufacturer: HPC STANDARDS GmbH Availability: In the manufacturer's stock Price on request - + Recommended 92269 Citric acid [2% wt] Price on request 24DIPPDPP 2,4-Diisopropylphenyl diphenyl phosphate, 1.2ml x 50ug/ml, toluene Price on request 59364 Nitrate (NO3-) as N Price on request