Forensic Geochemistry
Empiria Labs provides high quality analytical services and scientific interpretation with emphasis on organic geochemistry, surface geochemical exploration, oil spill evaluation, forensic environmental, and E&P environmental assessment.
Our forensic environmental geochemistry methods are based in highly modified EPA and NOAA procedures and proprietary methods. We are focused in the extraction and analysis of organic compounds in sediments, soils, tissues (fish, bivalves, etc.) and vegetable material) using ultra-high resolution instrumentation. Our typical analytical procedures include:
Polycyclic Aromatic Hydrocarbons and its alkyl-substituted homologs by GCMS-SIM
TPH ranging between n-C10 to n-C40+Isoprenoids (Pr & Ph) by HRGC/FID
Quantitation of unresolved complex mixture (UCM)
Butyltins (TeBT, TBT, DBT, and MBT) by GCMS-SIM
Polybrominated Diphenyl Ether (PBDE) & Polybrominated Biphenyls (PBBs)
WOGC and C15+ n-alkanes by CG/FID
Interstitial Headspace Gas Analysis (C1 to C5+) by GC/FID
Hydrocarbon extraction in sediments and soils by Dionex ASE-350
Total Scanning Fluorescence (TSF)
Gas Isotope analysis by compound specific isotope analysis by GC-IrMS
Total Organic Carbon by LECO-220
Grain size distribution by Sieving by ASTM D422
Moisture content and pH of soils and sediments by ASTM D2216 & ASTM D4972
PCBs & Organochlorinated pesticides (DDT, HCH, chlordane, HCB, lindane, etc.)