Results 41 to 50 of about 6,153 (218)

Selective Extraction of Organic Contaminants from Soil Using Pressurised Liquid Extraction

open access: yesJournal of Chemistry, 2013
This study focuses on the application of sorbents in pressurised liquid extraction (PLE) cell to establish a selective extraction of a variety of organic contaminants (polycyclic aromatic hydrocarbons (PAHs), chlorpyrifos, phenol, pentachlorophenol, and ...
Rozita Osman, Norashikin Saim
doaj   +1 more source

Update of the risk assessment on dioxins and dioxin‐like PCBs in feed and food

open access: yesEFSA Journal, Volume 24, Issue 6, June 2026.
Abstract The European Commission asked EFSA to update its 2018 risk assessment on polychlorinated dibenzo‐p‐dioxins and dibenzofurans (PCDD/Fs) and dioxin‐like polychlorinated biphenyls (DL‐PCBs) in feed and food, based on the 2022 WHO Toxic Equivalency Factors (WHO2022‐TEFs).
EFSA Panel on Contaminants in the Food Chain (CONTAM Panel)   +27 more
wiley   +1 more source

Study on determination of pentachlorophenol and its sodium salt in feed by gas chromatography-tandem mass spectrometry

open access: yesSiliao yanjiu, 2021
The experiment established a method for the determination of pentachlorophenol and its sodium salt in feed by gas chromatography-tandem mass spectrometry. The samples were grinded into powder, submerged with water, acidified by 6 mol/L hydrochloric acid,
Zheng-he HE   +5 more
doaj  

Molecular‐Level Insights into Interfacial Adsorption Mechanisms of PFOA on Functional Dolomite Surfaces via AIMD and Spectroscopy

open access: yesAdvanced Materials Interfaces, Volume 13, Issue 10, 19 May 2026.
Perfluorooctanoic acid (PFOA), ab initio molecular dynamics (AIMD), density functional theory (DFT), Dolomite (DL), metal‐organic frameworks (MOFs), calcined modified dolomite (CDL), zero‐point of charge (PZC), metal‐organic frameworks (MOFs), Fourier transform infrared (FTIR), X‐ray diffraction (XRD), scanning electron microscopy (SEM ...
Yating Yang   +8 more
wiley   +1 more source

Direct electrochemistry of pentachlorophenol hydroxylase

open access: yes, 2001
The direct electrochemistry of the flavin-containing monooxygenase, pentachlorophenol hydroxylase (PCPH), at an edge plane graphite electrode was observed and a catalytic response, linear with concentration, was found with the substrate pentachlorophenol
Hill, HAO   +6 more
core   +1 more source

Determination of pentachlorophenol and its sodium salt residue in eggs using d-SPE method coupled with UPLC-MS/MS

open access: yesCyTA - Journal of Food
A method, improved d-SPE extration couple with ultra performance liquid chromatography tandem-mass spectrometry (UPLC-MS/MS), was developed for the determination of pentachlorophenol and its sodium salt residue in eggs.
Nengming Chu   +4 more
doaj   +1 more source

Advanced Oxidation Process Based Sulfate Radical (AOP-SR) in a UV Reactor to Remove Pentachlorophenol from Aqueous Media

open access: yesMuhandisī-i Bihdāsht-i Muḥīṭ, 2022
Background & Objectives: In recent years, due to water shortages and rapid industrial growth, the treatment and reuse of industrial wastewater has become of great importance.
Ghorban Asgari   +3 more
doaj  

Cold EI—The Way to Improve GC‐MS and Increase Its Range of Applications

open access: yesMass Spectrometry Reviews, Volume 45, Issue 3, Page 548-582, May/June 2026.
ABSTRACT Gas chromatography‐mass spectrometry (GC‐MS) with Cold electron ionization (EI) is based on interfacing the GC and MS with a supersonic molecular beam (SMB) along with electron ionization of vibrationally cold sample compounds in the SMB in a contact‐free fly‐through ion source (hence the name Cold EI).
Aviv Amirav   +3 more
wiley   +1 more source

Adsorptive removal of pentachlorophenol from aqueous solutions using powdered eggshell

open access: yesArchives of Environmental Protection, 2017
The usefulness of untreated powdered eggshell as low-cost adsorbent for the removal of pentachlorophenol (PCP) from aqueous solutions was investigated.
Kuśmierek Krzysztof   +3 more
doaj   +1 more source

At-line testing of chlorophenol and chloroanisole contaminants in commercial wine production. [PDF]

open access: yes, 2004
The research described in this thesis concerns the development of at-line test procedures for the detection of trace levels of chlorophenols and chloroanisoles in wine and related materials.
Nicholls, C. R.
core  

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