Energy Dispersive X-ray Spectroscopy (EDS)

Energy Dispersive X-ray Spectroscopy (EDS), also known as Energy Dispersive X-ray Analysis (EDAX or EDX), is a chemicalcharacterization method used in testing labs for the elemental analysis of a solid material. The EDS spectrum captured for a sample is used to evaluate its characteristics. Infinita Lab provides the best material testing laboratory services for clients in the USA and other parts of the world. ... Read More

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    Energy Dispersive X-ray Spectroscopy

    Energy Dispersive X-ray Spectroscopy (EDS), also known as Energy Dispersive X-ray Analysis (EDAX or EDX), is a chemical characterization method used for the elemental analysis of a solid material. It is used to identify the elements in a sample (qualitative analysis) and determine their relative abundance (quantitative analysis) by generating EDS spectrum. It can detect elements from carbon to uranium in quantities as low as 1.0 wt% of the sample. When coupled with techniques like Scanning Electron Microscope (SEM), Transmission Electron Microscopy (TEM), and Scanning Transmission Electron Microscopy (STEM), EDS can provide simultaneous compositional information of the sample features. The EDS detector captures the characteristic X-rays emitted from the sample within the EM chamber to reveal the elemental composition. This can be used to perform point analysis, line scans, or map out the lateral distribution of elements across the SEM, STEM, or TEM imaged area. The spatial resolution of these elemental analysis areas can be as low as 10 nm, depending on the electron microscopy technique used.

    Experts at Infinita Lab assist our clients based in the USA and other countries across the globe in choosing the most appropriate test strategies related to Energy Dispersive X-ray Spectroscopy, that are performed in our testing labs, to ensure that all projects are accurate, timely, and cost-effective. 

    Common Uses of Energy Dispersive X-ray Spectroscopy (EDS) 

    • Surface mapping of polymer composite membranes by EDS spectrum
    • Characterization of polymer Reverse Osmosis (RO) membrane
    • Elemental composition and toxic effect of nanoparticles
    • Detection of nanoparticles (for the improvement of the chemotherapeutic agents) in the drugs
    • Detection of metal contaminants in non-small cell lung cancer
    • Characterization of different isotypes of calcification in the tissues that can cause diseases
    • Investigation of hazardous heavy metals in agricultural land and human tissues
    • Analysis of organic to metal bonding failure modes
    • Examination of gunshot residue

    Advantages of Energy Dispersive X-ray Spectroscopy (EDS) 

    • Non-destructive analysis technique
    • The “spot” mode allows a full elemental EDS spectrum in only a few seconds
    • Can be used in semi-quantitative mode to determine chemical composition by comparing a peak-height ratio to a standard

    Limitations

    • Energy peak overlaps among different elements in the EDS spectrum
    • EDS with the Si-Li detectors protected by beryllium window cannot detect the lightest elements, typically below the atomic number 11 (Na)
    • Samples must be compatible with vacuum
    • The minimal detectable elemental concentration is approximately 10 ppm
    • Quantitative analysis can only be performed on bulk samples with a flat surface,
    • Not sensitive for elements present in concentrations < 1% by mass
    • Not capable of distinguishing between ionic and nonionic species

    Industries Served in the USA and Other Countries

    • Metals
    • Nanomaterials
    • Polymers and composites
    • Biomedical research and diagnosis
    • Drug delivery and diagnosis
    • Geology
    • Forensic Science
    • Thin films and membranes

    Energy Dispersive X-ray Spectroscopy (EDS) Laboratories

    • EAG Laboratories Inc.
    • Particle Technology Labs
    • Laboratory Testing, Inc.
    • Microvision Laboratories, Inc.
    • Atrona Test Labs, Inc.
    • RTI Laboratories
    • Polyhedron Laboratories, Inc

    More Details

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      FAQs on Energy Dispersive X-ray Spectroscopy (EDS)

      Where can I get energy-dispersive X-ray spectroscopy (EDS) done?

      We at Infinita Lab, USA, provide a range of energy-dispersive X-ray spectroscopy tests to identify different substances in a sample.

      How much does energy-dispersive X-ray spectroscopy (EDS) analysis cost?

      The cost depends on the type of test. SEM+EDS analysis of materials starts at $325/hour.

      What are the uses of energy-dispersive X-ray spectroscopy (EDS)?

      Energy-dispersive X-ray spectroscopy (EDS) is an analytical technique used to identify different substances in a sample. The data from the test is used for material identification, coating analysis, contaminant identification, and corrosion analysis. 

      What is included in energy-dispersive X-ray spectroscopy (EDS) analysis?

      Energy-dispersive X-ray spectroscopy (EDS) analysis and electron microscopy techniques include point elemental analysis, line scans, and elemental mapping of samples. Advanced 2D and 3D mapping are available when EDS is combined with SEM/STEM/TEM imaging and FIB etching.

      What is Energy Dispersive Spectroscopy (EDS)?

      Energy Dispersive X-ray Spectroscopy (EDS or EDX or XEDS) identifies the type of elements in a sample (qualitative analysis) and measures their relative abundance (quantitative analysis) by generating EDS spectrums.

      What is the principle of EDS?

      The operating principle of EDS is taken from Moseley’s law, which gives the relationship between the frequency of light released and the atomic number of the atom. In EDS, X-rays release core electrons (non-valence shell electrons) from an atom.

      What is the difference between EDS and EDX?

      Electron Dispersive X-ray Spectroscopy (EDS) and Electron Dispersive X-ray (EDX) analysis refer to the same test and can be used interchangeably. The only difference is that EDX refers to the testing method, while EDS is the name of the equipment used in the test.

      What elements can EDS detect?

      Common Uses of Energy Dispersive X-ray Spectroscopy (EDS)

      o Surface mapping of polymer composite membranes by EDS spectrum
      o Characterization of polymer Reverse Osmosis (RO) membrane
      o Elemental composition and toxic effect of nanoparticles
      o Detection of nanoparticles (for the improvement of the chemotherapeutic agents) in the drugs
      o Detection of metal contaminants in non-small cell lung cancer
      o Characterization of different isotypes of calcification in the tissues that can cause diseases
      o Investigation of hazardous heavy metals in agricultural land and human tissues
      o Analysis of organic to metal bonding failure modes
      o Examination of gunshot residue

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