Analysis of PIP (3:1) in Plastic by Py/TD-GC-MS

User Benefits

- The pyrolyzer/thermal desorption-GC/MS (Py/TD-GC-MS) enables analysis of PIP (3:1) in plastic using simple operations and no organic solvents. - By using Fast Automated Scan/SIM Type (FASST), other additives can also be qualitatively analyzed while analyzing PIP (3:1) in high-sensitivity mode. - Other detected additives are easily identified using the Polymer Additives Library.

Introduction

Phenol, isopropylated phosphate (3:1) (PIP (3:1)) (CAS registry no. 68937-41-7) is a phosphate compound with three isopropylated phenyl groups. It is used as a plasticizer or flame retardant in polyvinyl chloride (PVC), polyurethane, and other plastic materials. Due to the wear resistance and compression resistance, the compound is also used in a wide variety of materials, such as hydraulic fluids, lubricating oils, coatings, adhesives, sealants, and plastic articles. On the other hand, based on Section 6(h) of the Toxic Substances Control Act (TSCA), the United States Environmental Protection Agency (U.S. EPA) addressed PIP (3:1) as a chemical substance that has all three characteristics of persistent, bioaccumulative, and toxic (PBT) chemicals and has started regulating the commercial process and distribution of PIP (3:1) and PIP (3:1)-contained products or articles within United States. The pyrolyzer/thermal desorption-GC-MS (Py/TD-GC-MS) is specified in the international standard IEC 62321-8 as a phthalates screening system. Because this system does not require organic solvents like solvent extraction GC/MS methods, it is currently attracting interest as an environmentally and analytical operator-friendly system. This article describes an example of verifying that Py/TD-GC-MS can be applied to analyze PIP (3:1) in plastic.

July 16, 2021 GMT