More than 40 years production and distribution of analytical standards, reference materials, environmental standards for residue analysis and environmental analysis.Worldwide distributionPesticides and pesticide metabolitesPAH, PBB, PCB, Phenol, Volatiles, Semi-Volatiles and other potential pollutants like azodyes, toxaphen single congeners, optical active enantiomers, explosives, polycyclic musk compounds, epa method mixes, stable isotope labelled chemicals like deuterated compounds, 13C labelled compoundsIn neat form, as individual solutions (10 and 100 mg/L) and in mixesStandards for EPA methodsProduced strictly under ISO 9001 quality standardsAll our certificates are signed originally to enable full traceability of our documentsCustom designed mixes according to your requirements with Certificate and ISO 9001We synthetise stable isotope labelled and unlabelled chemicals and metabolitesThe specialized library of mass spectra with more than 1500 spectra including pesticides, pesticide metabolites, PAH, PBB, PCB explosives and other environmental important chemical compounds are listed in our ms libraryTechnical support is free of charge