Results 31 to 40 of about 2,072 (135)

Dispersive Liquid-Liquid Microextraction

Majallah-i Dānishgāh-i ̒Ulūm-i Pizishkī-i Bābul, 2018
Background: The presence of many intrusive agents in a device for analyzing materials always leads to the inability of these methods in the direct analysis of complex matrices.
M Rahdari
doaj  

Optimized SPE‐HPLC‐FLD Method for the Simultaneous Determination of Olaparib, Propranolol, and Furosemide in Human Urine

Biomedical Chromatography, Volume 40, Issue 8, August 2026.
ABSTRACT Olaparib belongs to the PARP inhibitors and is widely used as an anticancer drug. Due to frequent side effects, it is usually co‐administered with an antihypertensive, such as propranolol and/or an antidiuretic, such as furosemide. In this study, a highly sensitive HPLC‐FLD method was developed for the simultaneous determination of the three ...
Georgios Kamaris, Antonia Kalagia, Catherine K. Markopoulou   +2 more
wiley   +1 more source

Valproic acid extraction methods in human samples for gas chromatography analysis: a review

Drug Analytical Research
Valproic acid (VPA) is widely used as an important drug for the treatment of epilepsy, seizures, bipolar disorders, and migraines. However, its narrow therapeutic range lead to risks of unintentional poisoning and potential suicide.
Juliana Blume de Oliveira, Bruno Pereira dos Santos, Marcelo Arbo   +2 more
doaj   +1 more source

Ion pair-dispersive liquid-liquid microextraction of trace amount of rhodium ion in water and road dust samples prior to flame atomic absorption spectrometry determination

Química Nova, 2011
A simple ion pair-dispersive liquid-liquid microextraction method was proposed for preconcentration trace amounts of rhodium. An ion association complex of RhCl4- and tetradecyldimetylbenzylamonium was extracted into cholorobenzene.
Daryoush Afzali, Ali Ghazizadeh, Hassan Salari   +2 more
doaj   +1 more source

Liquid-phase microextraction of polycyclic aromatic hydrocarbons: A review

Reviews in Analytical Chemistry, 2020
Polycyclic aromatic hydrocarbons (PAHs) are a large group of organic compounds comprised of two or more fused benzene rings, which arise from the incomplete combustion of organic materials. These compounds have been of concern as carcinogens and mutagens
Jalili Vahid, Barkhordari Abdullah, Ghiasvand Alireza   +2 more
doaj   +1 more source

The Influence of Applied Voltage on Drying Kinetics, Quality, and Mathematical Modeling of Ginger During Electrohydrodynamic (EHD) Drying

Food Science &Nutrition, Volume 14, Issue 8, August 2026.
The graphical abstract systematically outlines the experimental design and major findings of this study. On the left is the conventional natural air‐drying method used as the control group; the middle section illustrates the Electrohydrodynamic (EHD) drying process under voltage gradients of 13, 17, and 21 kV, followed by four analytical dimensions ...
Mingyu Ding, Jingli Lu
wiley   +1 more source

Green and Rapid Determination of Phthalates in Mineral Water From Virgin and Recycled PET Bottles

Journal of Mass Spectrometry, Volume 61, Issue 8, August 2026.
ABSTRACT This study investigates the presence and quantification of phthalates released into mineral waters from virgin and recycled polyethylene terephthalate (PET) bottles. A green, solvent‐free analytical method based on solid‐phase microextraction (SPME) coupled with gas chromatography–mass spectrometry (GC/MS) was developed and validated to detect
Claudia Lino, Serena Indelicato, David Bongiorno, Fabio D'Agostino, Giuseppe Avellone   +4 more
wiley   +1 more source

Evaluating Stabilizers Effects on Aroma Release Dynamics in Ice Cream: A PTR‐ToF‐MS Analysis

Journal of Mass Spectrometry, Volume 61, Issue 8, August 2026.
ABSTRACT Capturing the dynamic volatilome of frozen matrices during phase transitions remains an analytical challenge, typically requiring invasive sampling. This study employs proton transfer reaction time‐of‐flight mass spectrometry (PTR‐ToF‐MS) as a rapid, noninvasive technique that directly samples headspace volatiles without preconcentration to ...
Camila Cossettin Teixeira, Michele Pedrotti, Lorenzo Gennari, Andrea Cavallero, Flavia Gasperi, Iuliia Khomenko, Franco Biasioli   +6 more
wiley   +1 more source

Aboveground and Belowground Insect Herbivory Changes Maize‐Wireworm Interactions via Root Volatile Cues

Plant, Cell &Environment, Volume 49, Issue 8, Page 5689-5702, August 2026.
ABSTRACT The rhizosphere harbours critical plant‐herbivore interactions often mediated by small lipophilic molecules (SLMs). Despite the agricultural importance of many soil‐dwelling insects, surprisingly little is known about chemically mediated belowground crop‐pest interactions. Root and shoot herbivores can influence these interactions by modifying
Diego M. Magalhães, Gareth A. Thomas, Oliver Clark‐Hattingh, Anusha Mohan‐Kumar, Pradip Songara, John C. Caulfield, David M. Withall, Michael A. Birkett, József Vuts   +8 more
wiley   +1 more source

Dispersive liquid-liquid microextraction for determining urinary muconic acid as benzene biological indicator [PDF]

Journal of the Serbian Chemical Society
The monitoring of occupational exposure to chemicals is essential for assessing the workplace. In the case of hazardous and carcinogenic chemicals, such as benzene, occupational monitoring becomes even more crucial.
Moghadasi Abolfazl, Yousefinejad Saeed, Soleimani Esmaeel, Taghvaei Sajjad, Jafai Saeed   +4 more
doaj   +1 more source