Analyzing UV-328 and Dechlorane Plus in Plastic by Pyrolyzer/Thermal Desorption-GC-MS

User Benefits

- Pyrolyzer/thermal desorption–GC-MS enables simultaneous screening analysis of UV-328 and dechlorane plus in plastics with a simple operation without the use of organic solvents. - Fast Automated scan/SIM Type (FASST) enables qualitative and quantitative analysis in a single measurement.

Introduction

UV-328 is an ultraviolet (UV) absorber and dechlorane plus (DP) is a fluorinated flame retardant. Two compounds are used as an additive in plastics. UV-328 is used in automobile paints and coatings that must be resistant to light exposure, and DP is used in various industrial products such as electric cabling and wire insulation that must be flame retardant and have insulating properties. The Stockholm Convention on persistent organic pollutants (POPs) considers UV-328 and DP to be highly environmentally persistent, bioaccumulative, and toxic to humans and other organisms, and identifies them as chemicals of concern for longrange environmental transport. As a result, there is an increasing need to test products and molded articles that contain these substances. Solvent extraction-GC-MS can quantitate both components accurately but has issues such as a need for large amounts of organic solvent, a long time-consuming for extraction step, and high levels of analyst skills. On the other hand, pyrolyzer/thermal desorption-GC-MS (Py/TD-GC-MS), which has been adopted in the international standard IEC 62321-8, can analyze plastic samples directly without the solvent extraction and provides a very effective analytical technique for analyzing additivesin plastics. In this article, a rapid and simple screening method for UV 328 and DP in polymers was investigated using Py/TD-GC-MS.

February 17, 2023 GMT