Polymer additive identification and analysis.

Intertek's laboratory in Reinach (BL) offers standardized and R&D support services for the chemical identification of polymer additives in various plastic materials.

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Usually the polymer is extracted using an appropriate solvent. The selection of the correct solvent for a particular polymer is essential for the successful extraction of polymer additives. The polymer extract is then analysed by LC-MS and GC-MS.

Polymer additives have different chemical and physical properties. LC-MS and GC-MS are complementary analytical techniques, their combined use maximises the chance of a successful analysis. LC-MS is better for high molecular weight and more polar additives. GC-MS is better for low molecular weight and less polar additives.

To provide an example: in an LC-MS chromatogram of a polypropylene extract sample contained the additives dioctylphthalate (plasticiser), Tinuvin 312 (UV absorber), Irganox 1010 (antioxidant) and Irgafos 168 (processing stabiliser). 

Intertek offers on-line pyrolysis-GC-MS of polymer chips as a quick low cost procedure to get preliminary data on polymer additives. This technique does not have the comprehensive scope of the solvent extraction-LC-MS/GC-MS procedure.
  

Contact us to see how Intertek can help your organization with Identification of Polymer Additives.


Service groups

Quality assurance
    Chemical analytics

Industry focus

Automotive Plastics industry

Materials

Plastic

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Company offering this service

Intertek (Schweiz) AG

Intertek (Schweiz) AG ist der führende Anbieter für Polymer-Additiv-Analytik in der Schweiz. Unsere Wurzeln liegen in der ehemaligen CIBA Specialty Chemicals, Basel. Unsere Expertise ist die Analytik der Stabilisierung von Polyolefinen.

Your contact person at Intertek (Schweiz) AG

Get in contact with:

Sandro Laiso
Sales / Distribution
Field of competence: Business Development

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