Magnetic covalent triazine framework for rapid extraction of phthalate esters in plastic packaging materials followed by gas chromatography-flame ionization detection

Determination of Phthalate Esters in Water and Coffee by Solid‐Phase Microextraction Using Vinyl Terminated Imidazolium Based Ionic Liquid Grafted on Graphene Oxide Coatings

“…Because of their extensive usage and production, they can be detected in air, water, soil and even the human body as an environmental polluter . The ways people exposed to PAEs are mainly through food products, digestion, skin contact, inhalation, and intravenous medical devices . Issued by the US Environmental Protection Agency, six PAEs (dimethyl phthalate, diethyl phthalate, dibutyl phthalate, butylbenzyl phthalate, diethylhexyl phthalate) have been classified as preferential environmental pollutants .…”

“…PAEs have been detected chromatographically including gas chromatography coupled with flame ionization (GC‐FID), gas chromatography‐mass spectrometry (GC‐MS), high‐performance liquid chromatography coupled with diode array detection (HPLC‐DAD) and liquid chromatography‐mass spectrometry (LC–MS) besides capillary electrophoresis and voltammetric analysis . Generally, the appropriate sample pretreatment should be processed for the real samples prior to chromatographic analysis.…”

Molecularly imprinted covalent organic polymers for the selective extraction of benzoxazole fluorescent whitening agents from food samples

“…Recently, covalent organic polymers (COPs) have been synthesized for the gel monolithic column online coupling to HPLC for the analysis of FWAs in food samples . Moreover, COPs have been utilized for high‐performance sorbents for SPE, mainly because of their adjustable pore structure, large surface area, and extraordinary thermal stability . However, COPs tend to lack specific molecular bonding ability.…”

Magnetic solid-phase extraction using a mixture of two types of nanoparticles followed by gas chromatography-mass spectrometry for the determination of six phthalic acid esters in various water samples

“…Phthalic acid esters (PAEs) are primarily used as plasticizers in the manufacture of plastics, children's toys, medical devices, food packaging materials, and other plastic products, to improve their exibility, elasticity, and processability. [1][2][3] PAEs are not tightly bound to the polymers 1 and they can be easily leached into food or water. A series of studies have revealed that PAEs might cause teratogenic, carcinogenic, reproductive and developmental effects, and endocrine disruption in animals.…”

“…High cost, fragility, and poor chemical and thermal stabilities of SPME bers limit its extensive application in the SPME method. 1,12 To overcome the aforementioned pitfalls, a new mode of SPE, namely magnetic solid-phase extraction (MSPE), has been introduced as a promising extraction approach. Magnetic sorbents, the core of MSPE, exhibit excellent extraction efficiency and can be easily and rapidly isolated from the mixture solution using an external magnetic eld.…”