Category Ranking
98%
Total Visits
921
Avg Visit Duration
2 minutes
Citations
20
Article Abstract
Polycyclic aromatic hydrocarbons and polychlorinated biphenyls are commonly categorized as persistent organic pollutants. In order to analyze these pollutants, customized stationary phases are increasingly being developed and synthesized for solid-phase extraction. In this work, we tested a new solventless solid-phase extraction approach based on the use of a Magic Chemisorber® (Frontier Lab) which consists of a bead-covered polydimethylsiloxane stationary phase with a thickness of 500 µm. These devices are directly immersed into aqueous samples and then introduced into a pyrolysis-gas chromatography-mass spectrometry system equipped with a cryofocusing system for the thermal desorption and analysis of the adsorbed species. Our new method performs better than the most recent solid-phase extraction devices, with limits of detection lower than 2.7 ng/L and limits of quantification lower than 9.0 ng/L. The method was tested on standard compounds and on an environmental sample, showing the potential to characterize other chemical species besides the persistent organic pollutants, such as phthalate plasticizers and antioxidants.
Download full-text PDF |
Source |
|---|---|
| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC9477944 | PMC |
| http://dx.doi.org/10.1007/s11356-022-22435-9 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
A rapidly synthesized magnetic microporous organic network for ultrasensitive detection of non-steroidal anti-inflammatory drugs in fish.
J Chromatogr A
September 2025
Key Laboratory of Advanced Mass Spectrometry and Molecular Analysis of Zhejiang Province, School of Material Science and Chemical Engineering, Ningbo University, Ningbo 315211, Zhejiang, China. Electronic address:
Non-steroidal anti-inflammatory drugs (NSAIDs) residues pose a potential threat to aquatic ecosystems and food safety. In this work, novel imine bond/pyridine nitrogen-rich magnetic microporous organic networks (MMONs-Br and MMONs-I) were synthesized via a facile one-pot strategy using brominated and iodinated precursors for the detection of NSAIDs in fish. Brunauer-Emmett-Teller analysis revealed a striking 11-fold difference in specific surface areas between the two materials (MMONs-Br: 293.
View Article and Find Full Text PDFElaboration of trapping conditions on zirconia for the online SPE-LC-MS/MS analysis of glyphosate and other polar organophosphonate and -phosphinate pesticide residues in plant-based food extracts.
Anal Chim Acta
November 2025
Chemical and Veterinary Investigations Office Stuttgart, Schaflandstraße 3/2, 70736, Fellbach, Germany.
Background: Previous studies involving cleanup via conventional solid-phase extraction (SPE) materials to overcome matrix effects for the polar organophosphonate and -phosphinate pesticides glyphosate, glufosinate, ethephon, fosetyl, and their various metabolites often showed limitations due to the existence of various matrix compounds in plant commodities with similar polarity. To overcome existing drawbacks, we utilized the unique selectivity provided by metal oxides as SPE materials. These were exploited in a novel automated online SPE-LC-MS/MS method which allowed analyte-specific trapping in the presence of excessive amounts of matrix compounds as typically contained in extracts of the Quick Polar Pesticides (QuPPe) method.
View Article and Find Full Text PDFCombination of Si@UiO-66-NH paper-based thin film microextraction with direct solid-state spectrofluorimetry for extraction and determination of estradiol in urine.
Anal Chim Acta
November 2025
Department of Analytical Chemistry, Faculty of Chemistry, Alzahra University, Vanak, Tehran, Iran; Analytical and Bioanalytical Research Centre, Alzahra University, Vanak, Tehran, Iran. Electronic address:
Background: Determination of the estradiol hormone in urine is crucial for evaluating congenital adrenal hyperplasia, certain hormone-producing ovarian tumors, polycystic ovary syndrome, liver disease, pregnancy, and infertility. On the other hand, steroid hormones can have destructive effects on the environment, animals, and the endocrine system of humans. Consequently, accurately measuring this hormone's concentration in trace amounts is essential for environmental safety and human health.
View Article and Find Full Text PDFIonic liquid-modified COF nanosphere for efficient extraction and sensitive detection of bisphenol pollutants.
Food Chem
September 2025
Henan International Joint Laboratory of Medicinal Plants Utilization, Colleage of Chemistry and Molecular Sciences, Henan University, Kaifeng 475004, Henan, China. Electronic address:
The bisphenols (BPs) contaminants with distinctive endocrine-disrupting properties have garnered significant attention. A new analytical methodology was proposed for the sensitive detection of hazardous BPs in efficient and food safety monitoring. The approach utilizes an ionic liquid-modified covalent organic framework (SCOF-V/IL-5F) as a solid-phase extraction adsorbent to enrich harmful BPs.
View Article and Find Full Text PDFMussel-inspired polydopamine-functionalized ultralight cellulose aerogel for simple and portable extraction of synthetic cathinones from biological samples.
J Chromatogr A
September 2025
College of Materials & Environmental Engineering, Hangzhou Dianzi University, Hangzhou 310018, China.
Synthetic cathinones (SCs) are drugs of abuse that act on the central nervous system, producing psychoactive effects similar to those of amphetamines. Their greater accessibility compared with the traditional amphetamine-type stimulants has contributed to their increasing popularity in recent years. The analysis of SCs in biological samples is essential for documenting their consumption.
View Article and Find Full Text PDF