Pesticides Reference standards for testing of pesticides and pesticide metabolites

Transcription

1 Pesticides Reference standards for testing of pesticides and pesticide metabolites Organophosphates Organochlorines Carbamates Pyrethroids Neonicitinoids Stable isotopes Toxaphene congeners Quaterinary ammonium pesticides LGC Quality ISO 9001 ISO/IEC ISO Guide 34 GMP/GLP ISO ISO/IEC 17043

2 With our reference standards, matrix materials and proficiency testing schemes, LGC can satisfy all your pesticide laboratory quality needs Dr. Ehrenstorfer standards by LGC Over 40 years experience in pesticides unrivalled breadth of choice, including stable isotope standards and metabolites kept in regular stock for fast and flexible service available in a number of formats comprehensive certificates of analysis detailing purity, recommended storage conditions and expiry date see the full range in our LGC Dr. Ehrenstorfer catalogue Certified matrix materials include: Food, drinking waters, environmental waters, soils, sediments and sludges Proficiency testing schemes for pesticide analysis include: Aquacheck Chemical analysis of clean and waste waters, agricultural soils, sewage sludges and more. QFCS Food chemistry Including pesticides in fruit and vegetables For further information or to download our latest catalogues, visit: or contact your local sales office. Don t miss our Food and environmental matrix materials catalogue!

3 About LGC Standards LGC is a global leader in the production and distribution of reference materials. Procedures used in our manufacturing facilities are accredited under ISO/IEC and ISO Guide 34, guaranteeing that our reference standards are produced to a high quality. LGC are a leading provider of Proficiency testing, which alongside the use of reference materials, enable laboratories to monitor the quality of their analytical results. Partnerships with other key specialist suppliers enable us to provide you with a comprehensive range of certified reference materials, matrix materials and quality control materials to meet your requirements. Dr. Ehrenstorfer have over 40 years experience in pesticide analysis. Now part of LGC they are a world leading brand of pesticide reference materials. Modern agricultural techniques and increasing global trade in food mean that there is an increasing requirement to test an ever wider range of pesticides. Often hundreds of analytes are measured at low concentrations, in a wide range of sample types. Quantitative analysis is required as regulatory limits are often established. Even with the advances in chromatography and mass spectrometry, the analysis of pesticide residues is one of the most challenging application areas.

4 Neat materials Dr. Ehrenstorfer is a world leading producer of pesticide and pesticide metabolite reference standards. Neat materials (individual reference standards) provide laboratories with the flexibility to tailor the scope of their testing to respond quickly to regulatory changes or different customer requirements. Pesticide analysis requires hundreds of compounds to be tested in a single sample. Several different metabolites are often required to be tested in order to monitor for the presence of certain pesticides. A range of approximately 1700 neat pesticides and pesticide metabolites are available in the Dr. Ehrenstorfer portfolio, including compounds difficult to obtain from other suppliers. This comprehensive range includes: Organophosphates Organochlorines Carbamates Pyrethroids Neonicitinoids Quaterinary ammonium pesticides Toxaphene congeners Stable isotopes LC/MS and GC/MS have been routinely adopted for pesticide analysis. Responses observed using these techniques can be affected by the sample matrix, detrimentally impacting on accurate measurement. Stable isotope labelled compounds can be added to samples to negate these matrix effects. LGC offers an extensive range of stable isotope labelled pesticide standards with more than 300 currently available as part of the Dr. Ehrenstorfer portfolio, enabling you to select the most appropriate internal standard to meet your needs.

5 Solutions and mixtures Laboratories may prefer to use pre-prepared solution standards to minimise the handling of chemicals and to reduce the time and effort spent in preparing in-house solutions. This can be especially beneficial if the analytical scope of the method is relatively fixed, for example, when testing against established regulatory requirements. Dr. Ehrenstorfer has produced nearly 4,500 different solutions and mixtures for the pesticide analysis sector. A range of concentrations are available and solutions are often available in different solvents to be compatible with LC and GC systems. Customs Sometimes laboratories have specific requirements that can t be met by available catalogue products. A different solvent, compound or concentration of compound may be required. If you can t find a product that matches your requirements LGC can produce a custom solution that will meet your exact technical requirements. Specific custom products can be requested by contacting your local sales office or via the website Are you following EPA methods in you laboratory? We cover the basics with our ready to use Dr. Ehrenstorfer ISO Guide 34 EPA mixes. This is an expanding range with over 200 products currently available. Please see our Dr. Ehrenstorfer EPA mixes product listing for full details of method and products.

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