ResourceMaterials
Mercury Determination in House Dust, NIST SRM-2584, USEPA Method 7473, Using the Teledyne Leeman Labs Hydra IIC Combustion CVAAS
Mercury Determination in House Dust, NIST SRM-2584, USEPA Method 7473, Using the Teledyne Leeman Labs Hydra IIC Combustion CVAAS
27 Oct 2015This application note will demonstrate the ability of the Teledyne Leeman Labs Hydra IIC Mercury Analyzer to determine total elemental mercury (Hg0) in National Institute for Standards and Technology (NIST) Standard Reference Material (SRM) 2584 - Trace Elements in House Dust using EPA Method 7473. EPA Method 7473 is approved for both laboratory and field analysis for mercury in solids and solutions using Thermal Decomposition, Amalgamation and Atomic Absorption Spectroscopy.
Links
Tags
Atomic Absorption / Emission SpectroscopyAtomic absorption spectroscopy (AAS) and atomic emission spectroscopy (AES) — also called optical emission spectroscopy (OES) — are used to detect the elemental constituents in samples. Both techniques involve the atomization of a sample. Atomic absorption spectrometers may use a flame or furnace to create an atomic vapor of the sample before irradiation with spectral light. Optical emission spectrometers may use a flame, inductively coupled plasma (ICP), microwave plasma (MP) or spark arcs to atomize and excite the sample. At higher excitation energies, electrons can be emitted instead of photons, which can be useful for samples that can’t be atomized and for surface analysis. Explore electron spectroscopy equipment such as Auger spectrometers and photoelectron spectrometers for surface elemental analysis of samples. Find the best atomic absorption, photoelectron and optical emission spectrometers in our peer-reviewed product directory: compare products, check customer reviews and receive pricing direct from manufacturers.Environmental Monitoring and TestingEnvironmental monitoring and testing uses handheld portable analyzers, kits, spectrometers or chromatography systems for air, water, soil, food and other sample testing. Useful features of analyzers such as BOD and COD include portability, easy calibration, automation and sensitivity. Environmental test kits for pH, water, moisture, etc, should be accurate, sensitive, reliable, fast and easy to use.Thermal Analysis EquipmentThermal analysis equipment is used for measuring heat flow, weight loss, dimension changes or thermomechanical properties and is important for analyzing a material’s performance and stability. Thermal analysis equipment includes differential scanning calorimeters (DSC), thermogravimetric analyzers (TGA), thermomechanical analyzers (TMA), dilatometers, thermometers, vapor sorption analyzers, boiling and melting point apparatus. Thermal analyzers can reveal properties such as melting, crystallization and glass transitions or other processes such as oxidation, decomposition, volatilization, as well as coefficients of thermal expansion and modulus. Find the best thermal analysis equipment in our peer-reviewed product directory: compare products, check customer reviews and receive pricing direct from manufacturers.EPA MethodsEPA methods are procedures approved by the U.S. Environmental Protection Agency for monitoring and analyzing environmental pollutants, including air, water, and soil samples. These methods are critical in ensuring public health and environmental safety. Explore EPA methods and tools in our peer-reviewed product directory; compare products, check reviews, and get pricing directly from manufacturers.NeurotoxinSoil TestingSoil testing helps determine the nutrient content, pH level, and other factors affecting soil health. This information is critical for agriculture, environmental science, and land management. Explore soil testing solutions in our peer-reviewed product directory; compare products, check reviews, and get pricing directly from manufacturers.Environmental ContaminationContaminants in the environment are harmful chemicals that are present in the air, land and water. These include pesticides, pharmaceuticals, persistent organic pollutants (POPs) and many more.DustMercury