Analytical Services

Analytical Services, Spectroscopy method, elemental analysis, isotope analysis, and molecular analysisAnalytical Services, Spectroscopy method, elemental analysis, isotope analysis, and molecular analysisAnalytical services involve essentially chemical analysis of materials to understand the makeup of any material. Chemical analysis in turn involves elemental analysis, isotope analysis, and molecular analysis. A whole variety of techniques are used to determine elemental and molecular chemistry of materials.  More common is spectroscopic method, which uses high energy beams like X rays, gamma rays, laser, microwave, etc., and particle beams like electrons, neutrons, etc. Spectroscopy methods are further categorized in to emission or absorption spectroscopy. The analyte is irradiated by one of the energy or particle beams and the absorption or emission by the analyte is analyzed and compared to pre-determined reference or standard materials. Other less commonly used methods involve wet chemistry, chromatography, etc. In addition to understanding just the chemical makeup of materials, it may be necessary to understand the material structure in terms of phase composition, crystal structure, and other thermo chemical properties like heat content etc. Again the material to be analyzed is irradiated using energy or particle beams and the diffracted or emitted beams are analyzed for characters unique to individual compounds or phases.

Capability – At Touchstone testing laboratory we use the following techniques to analyze elemental and molecular make up of materials.

  • Spectroscopic (Energy dispersive analytical X-ray) technique
  • Inductively couples plasma- optical emission method
  • Colorimetry for determination ionic species in water.

We use the following techniques in addition for constitutional analysis like phase composition, crystal structure, etc.

  • X Ray diffraction analysis
  • Gas chromatography combined with mass spectroscopy

Some relevant standards:

  • ASTM A751- Standard Test Methods, Practices, and Terminology for Chemical Analysis of Steel Product
  • ASTM E415- Standard Test Method for Analysis of Carbon and Low-Alloy Steel by Spark Atomic Emission Spectrometry
  • ASTM E1251- Standard Test Method for Analysis of Aluminum and Aluminum Alloys by Spark Atomic Emission Spectrometry
  • ASTM E1505- Standard Guide for Quantitative Analysis by Energy-Dispersive Spectroscopy
1094 Middle Creek Road
   Triadelphia, WV 26059

304-907-4010

info@touchstonetesting.com

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