Gas-diffusion microextraction
Gas diffusion microextraction (GDME) is an innovative technique that combines the advantages of membrane aided gas diffusion with microextraction concepts GDME makes uses of a novel portable and low cost device that comprises a small commercially available semi permeable membrane Furthermore if deri...
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| Outros Autores: | , , , |
| Formato: | article |
| Idioma: | eng |
| Publicado em: |
2010
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| Assuntos: | |
| Texto completo: | https://hdl.handle.net/10216/94911 |
| País: | Portugal |
| Oai: | oai:repositorio-aberto.up.pt:10216/94911 |
| Resumo: | Gas diffusion microextraction (GDME) is an innovative technique that combines the advantages of membrane aided gas diffusion with microextraction concepts GDME makes uses of a novel portable and low cost device that comprises a small commercially available semi permeable membrane Furthermore if derivatization is integrated into the GDME concept considerable enrichment factors can be obtained It may become a powerful tool for any analyst who intends to quantify volatile and semi volatile analytes in various kinds of matrices The analysis of vicinal diketones in beer was used as a case study to show GDME applicability and capabilities Vicinal diketones were derivatized with o phenylenediamine and then determined by HPLC UV Obtained results showed good repeatability and precision with extraction periods at the minute time span |
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