A covalent organic framework-coated steel substrate as a mass spectrometric ionization source for the effective enrichment and rapid detection of phthalates in beverages.

Qin He, Minli Yang, Xiujuan Wang, Bingcheng Yang, Feng Zhang

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Article in Mikrochimica acta, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

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5 · Who and what money

Authors and funding

5 authors.

Qin He *Institute of Food Safety, Chinese Academy of Inspection and Quarantine, Beijing, 100176, China.

Minli Yang *Institute of Food Safety, Chinese Academy of Inspection and Quarantine, Beijing, 100176, China.

Xiujuan WangInstitute of Food Safety, Chinese Academy of Inspection and Quarantine, Beijing, 100176, China.

Bingcheng YangSchool of Pharmacy, East China University of Science and Technology, Shanghai, 200237, China.

Feng ZhangInstitute of Food Safety, Chinese Academy of Inspection and Quarantine, Beijing, 100176, China. fengzhang@126.com.

Funding

National Key Research and Development Program of China 2023YFF1104800

6 · The paper itself

Abstract

A novel, rapid, and simple detection method is proposed to realize the simultaneous detection of seven phthalate esters (PAEs) within 1.5 min. A suitable covalent organic framework (COF) was coated on a stainless steel substrate (COFCS) to serve as both an enrichment element and a solid substrate for electrospray ionization mass spectrometry (ESI-MS). Twenty microliters of elution solvent was added dropwise to the COFCS enriched with analytes, and then high voltage electricity was applied and combined with ambient mass spectrometry (AMS) to realize the detection of PAEs. In order to investigate the reliability of the COFCS-ESI-MS method, dimethyl phthalate (DMP), diethyl phthalate (DEP), ethyl phthalate (2-methoxy) (DMEP), phthalate(2-ethoxy) ethyl ester (DEEP), dipentyl phthalate (DPP), dihexyl phthalate (DHXP), and butyl benzyl phthalate (BBP) were detected simultaneously. The proposed method showed good linearity in the range 0.1-80 μg/L with the determination coefficient (R

Indexed as

BeveragesMetal-Organic FrameworksPhthalic AcidsSpectrometry, Mass, Electrospray IonizationStainless SteelLimit of DetectionReproducibility of ResultsMetal-Organic Frameworksphthalic acidPhthalic AcidsStainless SteelAmbient mass spectrometryCOFCS-ESI–MSCovalent organic frameworksPhthalate esters

Identifiers

PMID39992473

DOI10.1007/s00604-025-06994-5

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.