Presentation Transcript
Slide 1:- Microbiology Laboratory
- Analytical Chemistry Laboratory - Environmental Chemistry Lab The OPP Laboratories: Environmental Science CenterFort Meade, Maryland Stennis Space Center
Bay St. Louis, MS
Slide 2:Responsibilities for Pesticide
Regulation in the U.S. U.S. Environmental Protection Agency (EPA)
Pesticide data reviews & registration
Sets tolerances
Approves product labels
U.S. Food & Drug Administration (FDA)
Regulates tolerances in agricultural crops & foods
Annual Total Diet Study
U.S. Department of Agriculture (USDA)
Regulates tolerances in meat, poultry, eggs & milk
Pesticide Data Program (PDP) monitoring in fruits & vegetables
Individual States
Verify label claims of products
Incidence & complaint monitoring
Environmental & food monitoring
How ACB fit into the Pesticide Program :How ACB fit into the Pesticide Program
Activities of the Analytical Chemistry Laboratory :Activities of the Analytical Chemistry Laboratory National Pesticide Standard Repository: all registered pesticides & metabolites in US.
Product Chemistry Team: A.I., impurities, label claim, formulation,….
Residue Chemistry Team:
Tolerance Method Validation (TMV): Registrant Method Review
(mostly review)
Multi-Residue Method Development (MRM)
Carbamates (LC/FL)
OPs (GC/pFPD)
Triazoles (LC-MS/MS)
Neonicotinoids & Macrocyclic Lactones (LC-MS/MS).
Special Projects to support OPP’s mission :Special Projects to support OPP’s mission Proportionality Study (HED)
Relationship between pesticide sprayed and residues found
Oxidation of OPs during chlorination of water (EFED)
Formation of oxons and other oxidation products upon water chlorination
Formetanate HCl in peach & nectarine samples (HED)
to obtain data on effect of label change
Effect of imidacloprid and metabolites on Bees (EFED)
Collaboration with University of Maryland in a study to determine the behavioral effects of imidacloprid on bees.
Homeland security (Chemical Warfare Agents) (R5)
Develop analytical method for the detection of metabolites of CWA as indicators
Global Residues Study (IR4)
Effect of geographic location on residues of tomatoes
Techniques used in ACB :Techniques used in ACB Extraction & cleaup
Cartridge Solid Phase Extraction
Dispersive Solid Phase Extraction (QuEChERS)
Analytical Instrumentation
UPLC-MS/MS
HPLC-UV/FL/MS
GC/MS
GC/ECD/NPD/pFPD
ISO 17025 certification is pending