Journal
FOOD CHEMISTRY
Volume 241, Issue -, Pages 411-418Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.foodchem.2017.09.031
Keywords
Paraben; Vortex-assisted dispersive liquid-liquid microextraction; Solidification Floating organic drop; Salt-assisted cloud point extraction; Capillary liquid chromatography-UV
Funding
- Ministry of Science and Technology [MOST 105-2113-M-037-015, 106-2113-M-037-006]
- NSYSU-KMU [NSYSUKMU 106-P005]
- Aim for the Top Universities Grant [KMU-TP105PR05]
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Parabens are common preservatives and environmental hormones. As such, possible detrimental health effects could be amplified through their widespread use in foods, cosmetics, and pharmaceutical products. Thus, the determination of parabens in such products is of particular importance. This study explored vortex-assisted dispersive liquid-liquid microextraction techniques based on the solidification of a floating organic drop (VADLLME-SFO) and salt-assisted cloud point extraction (SA-CPE) for paraben extraction. Microanalysis was performed using a capillary liquid chromatography-ultraviolet detection system. These techniques were modified successfully to determine four parabens in 19 commercial products. The regression equations of these parabens exhibited good linearity (r(2) = 0.998, 0.1-10 mu g/mL), good precision (RSD < 5%) and accuracy (RE < 5%), reduced reagent consumption and reaction times (< 6 min), and excellent sample versatility. VA-DLLME-SFO was also particularly convenient due to the use of a solidified extract. Thus, the VA-DLLME-SFO technique was better suited to the extraction of parabens from complex matrices.
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