Results 11 to 20 of about 2,590 (173)

Simultaneous Determination of Multiple Contaminants in Chicken Liver Using Dispersive Liquid-Liquid Microextraction (DLLME) Detected by LC-HRMS/MS

Foods, 2023
Simultaneous determination of a mixture of food contaminants, including pesticides, sulphonamides, fluoroquinolones, anthelmintics, and aflatoxin B1, in solid biological samples (chicken liver) by dispersive liquid-liquid microextraction/liquid ...
Belete Eshetu Gebreyohannes, Simiso Dube, Mathew Muzi Nindi   +2 more
doaj   +2 more sources

A miniaturized QuEChERS-DLLME method for simultaneous determination of acetamide, acrylamide, and glycidamide in infant formula using GC–MS

Advances in Sample Preparation
Infant formula is the only food product suitable for infants during the first months of life. Therefore, evaluating food contaminants is essential for ensuring infant food safety.
J.A. Custodio-Mendoza, M.P. España Fariñas, A.M. Ares-Fuentes, M.A. Kurek, A.M. Carro Díaz   +4 more
doaj   +2 more sources

Trace mercury determination in drinking and natural water after preconcentration and separation by DLLME-SFO method coupled with cold vapor atomic absorption spectrometry

E3S Web of Conferences, 2014
A novel dispersive liquid–liquid microextraction based on solidification of floating organic drop (DLLME-SFO) for simultaneous separation/preconcentration of ultra trace amounts of mercury was used.
Abdollahi Atousa, Amirkavehei Mooud, Gheisari Mohammad Mehdi, Tadayon Fariba   +3 more
doaj   +2 more sources

Rapid and Simple Dispersive Liquid–Liquid Microextraction (DLLME) Sample Preparation for Propofol Analysis in Hair, Blood, and Urine by Gas Chromatography–Mass Spectrometry

Drug Testing and Analysis, Volume 17, Issue 9, Page 1528-1536, September 2025.
Development and validation of an extraction method based on dispersive liquid–liquid microextraction for the analysis by GC–MS of propofol in three different biological samples (blood, urine, and hair). The proposed method is very simple and rapid.
Sara Odoardi, Serena Mestria, Valeria Valentini, Giulia Biosa, Sabina Strano Rossi   +4 more
wiley   +2 more sources

Schiff Base-UiO66 Composite-based Dispersive Micro Solid-Phase Extraction of Pesticides From Fruit Juices Combined With Dispersive Liquid-Liquid Microextraction Prior to Gas Chromatography-Flame Ionisation Detection. [PDF]

Anal Sci Adv
ABSTRACT A dispersive micro solid‐phase extraction method was introduced using a Schiff base‐UiO66 nanocomposite as the adsorbent in the extraction of multi‐class pesticide residues in pear, cherry, grape, and apricot juices. The extraction procedure was hyphenated with a liquid‐phase microextraction procedure, providing a high preconcentration factor ...
Hosseininezhad B, Bomorovat M, Nemati M, Farajzadeh MA, Atazadeh R, Afshar Mogaddam MR.   +5 more
europepmc   +2 more sources

Evaluation of MIP-OES as a detector in DLLME procedures: application to Cd determination in water samples [PDF]

, 2020
High-power microwave induced plasma optical emission spectrometry (MIP-OES) constitutes a serious alternative to inductively coupled plasma optical emission spectrometry (ICP-OES) for elemental analysis. To improve the analytical capabilities of MIP-OES,
Serrano, Raquel, Niedzielski, Przemysław, Grindlay, Guillermo, Gras, Luis, Mora, Juan   +4 more
core   +1 more source

Development and Optimization of a Dispersive Liquid-Liquid Microextraction Method for the Simultaneous Determination of Multiclass Pesticides in Environmental Waters. [PDF]

Anal Sci Adv
ABSTRACT The widespread use of pesticides in modern agriculture necessitates sensitive and sustainable methods to monitor their residues in environmental waters. This study reports the development and optimization of a dispersive liquid–liquid microextraction (DLLME) method combined with high performance liquid chromatography with diode array detector (
Negussie BT, Dube S, Muzi NM, Tesfaw A.
europepmc   +2 more sources

SALLE combined with LD-DLLME for pesticides analysis in sugar and soil samples [PDF]

, 2021
In this study, a modified salting-out-assisted liquid-liquid extraction (SALLE) combined with low density dispersive liquid-liquid microextraction (LD-DLLME) has been developed for quantitative determination of multiclass pesticide residues (atrazine ...
Gomoro , K., Tolcha, T., Megersa, N.
core   +1 more source

Microextração Líquido-Líquido Dispersiva (DLLME) fundamentos e aplicações [PDF]

, 2012
Nos últimos anos, as técnicas clássicas de preparo de amostra para a determinação de compostos orgânicos em amostras ambientais e alimentos estão sendo substituídas por técnicas miniaturizadas que são caracterizadas pelo baixo custo, alta eficiência ...
Primel, Ednei Gilberto, Adaime, Martha Bohrer, Barbosa, Sergiane Caldas, Prestes, Osmar Damian, Zanella, Renato, Martins, Manoel Leonardo, Caldas, Sergiane Souza   +6 more
core   +1 more source

DLLME PER L’ESTRAZIONE DI BDZ [PDF]

, 2018
È stato sviluppato un protocollo DLLME (Dispersive Liquid Micro Liquid Extraction) per la determinazione di 8 benzodiazepine (BDZ) in bevande. Sono stati ottimizzati volume e tipo dei solventi, forza ionica e uso di ultrasuoni ed il protocollo è stato ...
VERONICA TERMOPOLI, GIORGIO FAMIGLINI, MAURIZIO PIERGIOVANNI, PIERANGELA PALMA, ACHILLE CAPPIELLO   +4 more
core   +1 more source