Science & Technology

Validated Test Method 8170: Assay of Chemical Agents in Solid and Aqueous Samples by Gas Chromatography/Flame Photometric Detection (GC/FPD)

this describes the analysis of chemical agents in aqueous and solid samples by GC/FPD and has been applied to concrete, charcoal, wood, water, brine, ash, coral, sand, and soil

Validated Test Method 8261A: Volatile Organic Compounds by Vacuum Distillation in Combination with Gas Chromatography/Mass Spectrometry (VD/GC/MS)

method to determine the concentrations of volatile organic compounds and some low-boiling semivolatile organic compounds

Validated Test Method 8265: Volatile Organic Compounds (VOCs) in Water, Soil, Soil Gas, and Air by Direct Sampling Ion Trap Mass Spectrometry (DSITMS)

method that uses DSITMS for the rapid measurement, continuous monitoring, and preliminary screening of VOCs in water, soil, soil gas, and air

Validated Test Method 8271: Assay of Chemical Agents in Solid and Aqueous Samples by Gas Chromatograph/Mass Spectrometry, Electron Impact (GC/MS/EI)

method for analysis of chemical agents in aqueous and solid samples by gas GC/MS and has been applied to concrete, charcoal, wood, water, brine, ash, coral, sand, and soil

Validated Test Method 8272: Parent and Alkyl Polycyclic Aromatics in Sediment Pore Water by Solid-Phase Microextraction and Gas Chromatography/Mass Spectrometry in Selected Ion Monitoring Mode

method for separation of pore water from PAH-impacted sediment samples, the removal of colloids, and the subsequent measurement of dissolved concentrations of PAHs

Validated Test Method 8323: Determination of Organotins by Micro-Liquid Chromatography-Electrospray Ion Trap Mass Spectrometry

method that covers the use of SPE discs, solvent extractions, and micro-liquid chromatography coupled with ES-ITMS

Validated Method 8330B: Nitroaromatics, Nitramines, and Nitrate Esters by High Performance Liquid Chromatography (HPLC)

method for the trace analysis of explosives and propellant residues by high performance liquid chromatography (HPLC) using a dual wavelength UV detector

Validated Test Method 9016: Free Cyanide in Water, Soils and Solid Wastes by Microdiffusion

method for determination of free cyanide in waste waters, ground waters, surface waters, drinking waters, soils and solid wastes

SW-846 Method Development

Information on SW-846 method development.

Validated Test Method 3542A: Extraction of Semivolatile Analytes Collected Using Method 0010 (Modified Method 5 Sampling Train)

method that describes the extraction of semivolatile organic compounds from samples collected by Method 0010, replacing Sample Preparation section of Method 0010 (SemiVOST)

Validated Test Method 3571: Extraction of Solid and Aqueous Samples for Chemical Agents

describes the extraction of chemical agents from aqueous and solid samples using a microextraction technique applicable to concrete, charcoal, wood, water, brine, ash, coral, sand and soil

Validated Test Method 5030C: Purge-and-Trap for Aqueous Samples

This method describes a purge-and-trap procedure for the analysis of volatile organic compoundsin aqueous samples & water miscible liquid samples. It also describes the analysis of high concentration soil and waste sample extracts prepared in Method 5035.

Validated Test Method 5035A: Closed-System Purge-and-Trap And Extraction For Volatile Organics In Soil And Waste Samples

This method describes a closed-system purge-and-trap process for the analysis of volatile organic compounds (VOCs) in solid materials (e.g., soils, sediments, and solid waste).

Validated Test Method 3570: Microscale Solvent Extraction (MSE)

describes the procedure for extracting volatile, semivolatile, and nonvolatile organic compounds from solids such as soils, sludges, and wastes

Basic Information

NHDPlus is a geospatial, hydrologic framework dataset that is intended for use by geospatial analysts and modelers to support water resources related applications. NHDPlus was developed by the USEPA in partnership with the US Geologic Survey

Workshop on Lithium-Ion Batteries in the Waste Stream

Details on the virtual workshops on solutions to prevent fires from end-of-life lithium-ion batteries (LIBs) in the waste stream and to discuss how to increase recycling of lithium-ion batteries.

Methodology for Evaluating Beneficial Uses of Industrial Non-Hazardous Secondary Materials and the Beneficial Use Compendium

EPA’s approach for evaluating a wide range of industrial non-hazardous secondary materials and their associated beneficial uses.