Occurrence of Bisphenol A in soil and leachate of a municipal landfill: effect of the sample acidification
DOI:
https://doi.org/10.18226/23185279.v2iss1p10Abstract
The main objective of present study was the quantitative analysis of bisphenol A (BPA) in soil and leachate of a municipal sanitary landfill. The influence of the solvent polarity and pH over the quantitative analysis of BPA in the leachate was also investigated. The soil samples were collected from closed cells and extracted by Soxhlet extraction with ethanol. The liquid samples, from row leachate from the same sanitary landfill were extracted by Solid Phase Extraction (SPE) with C-18 cartridges and ethanol. The organic extracts from liquid and solid samples were analyzed by Gas Chromatography with Flame Ionization Detector (GC/FID). For the soil and liquid samples the average concentrations of BPA were 21.30 (±0.61) mg kg-1 and 26.83 (±2.69) mg L-1, respectively. These results were far above the ones cited in the literature and are of special concern because BPA may disrupt the human endocrine system. The acidification allows the increase of 5% of the extraction efficiency. In this way, the acidification step is recommended for the quantification of BPA in samples where the concentration of this analyte is below 0.1%. In these cases the acidification step may avoid important loss of the analyte and improve the detection limit in the instrumental analysis.
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Copyright (c) 2014 Nathalia Cristine Viecelli, Ricardo Perazzoli Baldasso, Irajá do Nascimento Filho, Kira Lusa Manfredini
This work is licensed under a Creative Commons Attribution 4.0 International License.
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Declaro que o presente artigo é original, não está sendo tendo sido submetido à publicação em qualquer outro periódico nacional ou internacional durante o processo de revisão. Através deste instrumento, em meu nome e em nome dos demais co-autores, porventura existentes, cedo os direitos autorais do referido artigo à revista SCIENTIA CUM INDUSTRIA. Contudo, a reprodução total ou parcial impressa ou eletrônica pode ser feita desde que o autor comunique oficialmente à revista. Declaro estar ciente de que a não observância deste compromisso submeterá o infrator a sanções e penas previstas na Lei de Proteção de Direitos Autorias. Declaro estar ciente de que a não observância deste compromisso submeterá o infrator a sanções e penas previstas na Lei de Proteção de Direitos Autorias (Nº9610, de 19/02/1998).