Issue 58, 2020, Issue in Progress

Optimization of double-vortex-assisted matrix solid-phase dispersion for the rapid determination of paraben preservative residues in leafy vegetables

Abstract

The extensive use of preservatives during the growth, transport and storage of vegetables has been a concern because of their known or suspected toxicity that jeopardizes human health. This paper reports the development of a technique that rapidly determines the presence of five paraben preservative residues in leafy vegetables using double-vortex-assisted matrix solid-phase dispersion (DVA-MSPD) and UHPLC-electrospray ionization(−)-quadrupole time-of-flight mass spectrometry detection. We simplified the original MSPD technique by eliminating the use of mortar/pestle and SPE-column procedures. The DVA-MSPD factors were screened by a multilevel categorical design, and then optimized by Box–Behnken Design plus response surface methodology. The limits of quantification were 1.2–1.8 ng g−1 (dry weight). The satisfactory average recoveries were 85–104% with RSDs less than 10%. The developed method was successfully employed for the rapid determination of selected paraben residues at trace-level in leafy vegetable samples.

Graphical abstract: Optimization of double-vortex-assisted matrix solid-phase dispersion for the rapid determination of paraben preservative residues in leafy vegetables

Supplementary files

Article information

Article type
Paper
Submitted
29 Jun 2020
Accepted
19 Sep 2020
First published
25 Sep 2020
This article is Open Access
Creative Commons BY-NC license

RSC Adv., 2020,10, 35557-35564

Optimization of double-vortex-assisted matrix solid-phase dispersion for the rapid determination of paraben preservative residues in leafy vegetables

C. Yang, W. Chung and W. Ding, RSC Adv., 2020, 10, 35557 DOI: 10.1039/D0RA05658H

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