Hollow fibre supported liquid membrane extraction for BTEX metabolites analysis in human teeth as biomarkers

González, Johannes Luis; Pell, Albert; López‐Mesas, Montserrat; Valiente, Manuel

doi:10.1016/j.scitotenv.2018.02.195

Cited by 8 publications

(1 citation statement)

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“…Despite the difficulty of analyzing organic compounds in human teeth, in another study, the three primary metabolites of BTEX compounds, including mandelic acid, hippuric acid, and methyl hippuric acid in human teeth, were determined with a transfer‐based method HF–LPME followed by HPLC–UV analysis. Enrichment factors increased hundreds of times, and the extraction time lasted about 20 h (González et al, 2018). Electromembrane microextraction (EME) is a new technique used to separate ionic compounds and works with the electrokinetic transfer of ionized analytes into the supported liquid membrane.…”

Section: Comparison the Adsorption Methods With Other Lpme Methodsmentioning

confidence: 99%

A review of new adsorbents for separation of BTEX biomarkers

Bahrami

Pirmohammadi

Bahrami

2021

Biomedical Chromatography

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The biomarker analysis of benzene, toluene, ethylbenzene and xylene (BTEXs) in biological samples is the primary technique for evaluating these compounds in occupational and environmental exposures. The BTEX biomarkers are widely used to study the BTEX distribution in the environment and workplaces. Liquid–liquid extraction and solid‐phase liquid extraction are among the most commonly used conventional methods to analyze biological indices of BTEXs. New methods have been proposed to analyze BTEX biomarkers using novel adsorbents such as sol–gel composite nanotubes, molecularly imprinted polymers and metal–organic frameworks, which are based on the application of needle trap devices, microextraction by packed sorbent, and solid‐phase microextraction techniques. This paper provides an overview of new methods since 2015 regarding applying microextraction methods based on new adsorbents and analyzing BTEX biomarker compounds for occupational and environmental exposures. The results were compared with the liquid‐phase microextraction methods recommended for urinary BTEX biomarkers.

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Section: Comparison the Adsorption Methods With Other Lpme Methodsmentioning

confidence: 99%