Abstract
The paper presents a highly selective analytical method for the determination of traces of bisphenol A (BPA) in wine and the results of a survey 59 wine samples sourced from vats (steel, wood and plastic), glass bottles and Tetra briks. The procedure consists of sample clean-up by sol-gel immunoaffinity chromatography followed by determination of BPA by high-performance liquid chromatography and fluorescence detection. The method has a limit of detection (LOD) (S/N=3) of 0.1ngml-1 and a limit of quantitation (LOQ) (S/N=6) of 0.2 ngml-1. In 13 of 59 wine samples, the BPA concentration was below the LOQ. The mean and median for all wine samples with BPA concentrations above the LOQ were 0.58 and 0.40 ngml-1, respectively. These values - the first set of data on BPA in wine - are far lower than previously published BPA levels derived from migration experiments using wine simulants. Experiments carried out by submerging plastic stoppers in ethanol-water (11:89, v/v) up to 11 weeks indicated that detectable amounts of BPA can be leached from some stoppers.
| Original language | English |
|---|---|
| Pages (from-to) | 1227-1235 |
| Number of pages | 9 |
| Journal | Food Additives and Contaminants: analysis, surveillance, evaluation, control |
| Volume | 23 |
| Issue number | 11 |
| DOIs | |
| Publication status | Published - 2006 |
Austrian Fields of Science 2012
- 104002 Analytical chemistry
- 104009 Food chemistry