Search Results - "El Hawari, Khaled"
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Contaminant and residue profiles in Lebanese food: a comparative analysis with global standards
Published in Food additives & contaminants. Part A, Chemistry, analysis, control, exposure & risk assessment (01-09-2024)“…Lebanon's agricultural sector, known for its diverse crop and livestock production, faces challenges in the international market due to the presence of…”
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Evaluation of honey authenticity in Lebanon by analysis of carbon stable isotope ratio using elemental analyzer and liquid chromatography coupled to isotope ratio mass spectrometry
Published in Journal of mass spectrometry. (01-06-2021)“…Honey is one of the most valuable sweeteners consumed by humans all over the world. Consequently, it is often a target for adulteration through the addition of…”
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Occurence of antimicrobial residues in milk and labneh consumed in Lebanon
Published in Food additives & contaminants Part B, Surveillance communications (01-03-2024)“…Antimicrobials are administered in livestock for different uses leading to milk contamination and several undesirable effects. Because there is a lack of…”
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Optimization of a Multi-Residue Screening Method for the Detection of 71 Antimicrobial Residues in Milk Products: the Case of Labneh
Published in Food analytical methods (01-10-2023)“…Labneh is a dairy product highly consumed in Lebanon, prepared from straining yogurt. Because there is a lack of surveillance of the antimicrobial residues…”
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Antimicrobial residues survey by LC-MS in food-producing animals in Lebanon
Published in Food additives & contaminants Part B, Surveillance communications (01-06-2020)“…The treatment of animals with antimicrobial products may lead to the contamination of edible tissues by their residues, which may represent a risk to human…”
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Design for the transfer of a validated liquid chromatography/tandem mass spectrometry analytical method for the determination of antimicrobial residues in honey from low‐resolution to high‐resolution mass spectrometry
Published in Rapid communications in mass spectrometry (15-07-2017)“…Rationale This paper investigates the validity of the transfer of a liquid chromatography/tandem mass spectrometry (LC/MS/MS) method for the determination of…”
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Optimization of a Solid-Phase Extraction Method for the Determination of 12 Aminoglycosides in Water Samples Using LC–ESI–MS/MS
Published in Chromatographia (01-05-2015)“…A new and simple method has been developed for determination and quantification of 12 aminoglycosides in environmental water samples. The method is based on…”
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A new derivatizing reagent for the determination of 5-nitro-2-furaldehyde in trout muscle by liquid chromatography-tandem mass spectrometry
Published in Talanta (Oxford) (01-08-2024)“…The 5-nitro-2-furaldehyde (5-NF) is an aldehyde aromatic organic compound that has been envisaged as an alternative marker for detecting nitrofurazone…”
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Impact of Lebanese practices in industry, agriculture and urbanization on soil toxicity. Evaluation of the Polycyclic Aromatic Hydrocarbons (PAHs) levels in soil
Published in Chemosphere (Oxford) (01-11-2018)“…This study was carried out in order to investigate the toxicity on Lebanese soil and to show the impact of the anthropogenic activities, industrialization and…”
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Screening methods for antibiotic residue detection in milk: Recent advances, challenges, and regulations
Published in International journal of dairy technology (24-09-2024)“…Antimicrobial residues in milk pose a significant risk to human health, prompting regulatory bodies to establish safety limits to protect consumers. While…”
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Microbiological contamination, antimicrobial residues, and antimicrobial resistance in raw bovine milk in Lebanon
Published in International dairy journal (01-11-2022)Get full text
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Pesticide residues in Lebanese apples and health risk assessment
Published in Food additives & contaminants Part B, Surveillance communications (01-06-2019)“…In Lebanon, apples are among the most consumed commodities; however, pesticide residues in apples have not been evaluated so far. Therefore, this study…”
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Development and validation of a multiclass method for the determination of antibiotic residues in honey using liquid chromatography-tandem mass spectrometry
Published in Food additives & contaminants. Part A, Chemistry, analysis, control, exposure & risk assessment (03-04-2017)“…A new, simple and fast method was developed for the determination of multi-class antibiotic residues in honey (sulfonamides, tetracyclines, macrolides,…”
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Residue Depletion of Nitrofurazone Metabolites, Semicarbazide and 5‑Nitro-2-Furaldehyde, in Broiler Chickens After Oral Administration
Published in Journal of agricultural and food chemistry (04-10-2024)“…Nitrofurazone (NFZ) antibiotic is banned in food-producing animals, and its metabolite, semicarbazide (SEM), is used as a marker residue for nitrofurazone…”
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Impact of ion-pairs for the determination of multiclass antimicrobials residues in honey by LC-MS/MS
Published in Food additives & contaminants. Part A, Chemistry, analysis, control, exposure & risk assessment (02-12-2017)“…This study examines the behaviour of volatile perfluorinated carboxylic acids used as ion-pairing reagents for the separation of multiclass antimicrobial…”
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