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Method development for the analysis of nonylphenol in different types of packaging

Project Code: A03047

31/12/2004

Central Science Laboratory
Rose, M ; Fernandes, A; Charlton, C

It is not established that the mixture of substances, generally referred to as nonylphenol, can migrate into food from packaging. But there have been literature reports that indicate this might happen. The first step in investigating this is to develop a method of analysis for this mixture of substances in materials and articles, in contact with food or drink.

This project developed methodology that uses either high temperature, soxhlet extraction, or dissolution followed by solvent extraction depending on the material type, followed by purification via chromatography on deactivated alumina. The procedures were internally standardised by ¹³C-labelling. The analytes were measured and quantified by Gas Chromatography-Mass Spectrometry. The methodology was validated. Data are provided in this report on reproducibility of measurement, limits of detection, recovery, and linearity of measurement. Results of duplicate analyses are also reported. The method is capable of detecting ppm or possibly ppb levels of nonylphenol if present in plastics, rubbers or paper.

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