6533b7d1fe1ef96bd125c1b9
RESEARCH PRODUCT
Carbon fibers as green and sustainable sorbent for the extraction of isoflavones from environmental waters.
Soledad CárdenasJuan L. BenedéJuan L. BenedéAlberto ChisvertRafael Lucenasubject
Detection limitSorbentChromatographyEnvironmental analysisElution010401 analytical chemistryDaidzeinExtraction (chemistry)Solid Phase ExtractionGenistein02 engineering and technologyIsoflavones021001 nanoscience & nanotechnology01 natural sciencesIsoflavones0104 chemical sciencesAnalytical Chemistrychemistry.chemical_compoundchemistryCarbon FiberTandem Mass Spectrometry0210 nano-technologyWater Pollutants ChemicalChromatography Liquiddescription
Abstract Isoflavones are a group of phytoestrogens of important environmental concern due to their endocrine disrupting effects. This article presents a rapid, green, and sustainable method for determining four isoflavones (daidzein, genistein, formononetin, and biochanin A) in environmental waters complying with current trends in Analytical Chemistry. The method consists of in-syringe dispersive solid-phase extraction (DSPE) as the extraction approach, using carbon fibers as extraction material. The synthesis of carbon fibers is simple and sustainable, since it only requires a natural product such as raw cotton as precursor, which is thermally treated (600 °C for 30 min) in an inert (Ar) atmosphere to convert it into carbon fibers. After extraction, the final eluate is analyzed by liquid chromatography-tandem mass spectrometry (LC-MS/MS). The proposed methodology allows the determination of the four isoflavones in water samples at the ng L−1 range, with limits of detection in the range from 17 to 25 ng L−1, relative standard deviations (RSD) from 2.8 to 10.1%, and good batch-to-batch repeatability (RSD
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2021-10-01 | Talanta |