Considerações sobre o preparo de amostras contendo micropoluentes estrogênicos

Química Nova

Marcus Vinicius De Liz²  Noemi Nagata¹  Patricio Peralta-zamora¹ 

[1] ,Universidade Tecnológica Federal do Paraná Departamento Acadêmico de Química e Biologia Curitiba PR ,Brasil

关键词: estrogens;    filtration;    solid-phase extraction;   

DOI  :  10.1590/S0100-40422012000600027

来源: SciELO

【 摘 要 】

In this work, the materials used in the recovery of estrogens from aqueous matrices by filtration and solid phase extraction were evaluated. The results showed that glass-fiber filters allow a recovery and repeatability compatible with this type of analysis, whereas cellulose esters lead to significant losses of the analytes, mainly due to adsorption processes. On the other hand, the transferring of the sample to the extraction cartridges should be carried out with glass or Teflon tubing, since the adsorption observed with other polymeric materials (eg. silicone, Tygon, polyethylene and PVC) dramatically reduces the recovery and repeatability of the extraction process.

【 授权许可】

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