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Last Update: 01/31/00

Detection and Identification of Volatile and Semi-Volatile Organics in Synthetic Polymers Used In Food and Pharmaceutical Packaging

Presented at the 1994 ASMS Meeting, Chicago, IL

INTRODUCTION

Synthetic materials, including Silicone, Viton® and Buna-N, are commonly used in the manufacture of O-Rings and other package sealing materials in the food and pharmaceutical industries for the packaging of products, which are destined for human consumption. The packaged and sealed manufactured products can be exposed to a wide variety of environmental conditions during processing, shipping and storage. As a result, the volatile emissions from these synthetic materials can migrate into the finished consumer product. The food and pharmaceutical industries are concerned about the degree of contamination of their finished products. The following method was developed to detect, identify and quantify the volatile emissions from a wide variety of packaging materials. The method involves the technique called Direct Thermal Extraction which uses a thermal desorption system to thermally extract organics directly from solid matrix materials without the use of solvent extraction or any other sample preparation. The result is a method which is quick, accurate, prevents contamination of samples with foreign solvents and permits the detection of volatiles which would be lost due to evaporation in standard extraction techniques.

Viton® is a registered trademark of DuPont Dow Elastomers

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