ASTM E1252 - FTIR ANALYSIS TESTING SERVICES

ASTM E1252 CHEMICAL ANALYSIS OF PLASTIC BY FTIR

ASTM E1252 is a method of identifying organic compounds by FTIR analysis.

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Purpose: Identify the primary component of a plastic, rubber, or organic material.

Sample: One gram (macro-FTIR) –or- one visible particle (micro-FTIR).

Price & Delivery: Contact us for a quote.

Basic Description: This instrument transmits an infrared light through a sample and varies the wavelength of the light as it records how much light is absorbed at each wavelength. The resulting spectrum can be searched against a computerized database containing known spectra for thousands of organic materials. FTIR can identify the difference between materials, such as polypropylene and polyethylene, which are made of only carbon and hydrogen but have different types of bonds between the elements. The results are typically plotted as a spectrum with frequency on the X-axis and absorption on the Y-axis.

Limitations: Cannot detect the bonds present in most inorganic materials such as metals and some minerals. Poor at identifying minor components in mixtures or finding trace additives unless they can be separated prior to analysis. Materials with similar organic bonds but different molecular weights such as hydrocarbon oil, paraffin wax, low density polyethylene, and high density polyethylene can have similar spectra.

Equipment:

  • Perkin Elmer, Spectrum 100, Infrared Spectrometer with ATR option.
  • Perkin Elmer, Multiscope, Infrared Microscope

Keywords:

  • Fourier Transform Infrared (FT-IR)
  • Attenuated Total Reflectance (ATR)

Method Publisher: www.astm.org

Related Techniques: