Results 61 to 70 of about 2,051 (162)

Pressure-assisted field-amplified sample injection with reverse migrating micelles for analyzing trace steroids in MEKC

, 2007
This paper describes a novel method that applies pressure-assisted field-amplified sample injection with reverse migrating micelles (PA-FASI-RMM) for the online concentration of neutral analytes in MEKC with a low-pH BGE.
Zeng, ZR, Wuhan Univ, Dept Chem, Wuhan 430072, Peoples R China, Sun, Junling, Zeng, Zhaorui, Xu, Ying, Fang, Huaifang, Yang, Fangxing   +5 more
core   +1 more source

Determination of caffeine by micellar electrokinetic chromatography in different beverages

Acta Marisiensis - Seria Medica
A fast, simple and cost-effective capillary electrophoresis (CE) method was developed for caffeine determination in different beverages (energy drinks, soft drinks).
Uilăcan Alexandra, Stroia Denisa Gabriela, Hancu Gabriel   +2 more
doaj   +1 more source

Hydrophilic Monomethyl Auristatin E Derivatives as Novel Candidates for the Design of Antibody-Drug Conjugates

Separations, 2018
Antibody-drug conjugates (ADCs) are promising state-of-the-art biopharmaceutical drugs for selective drug-delivery applications and the treatment of diseases such as cancer.
Filip S. Ekholm, Suvi-Katriina Ruokonen, Marina Redón, Virve Pitkänen, Anja Vilkman, Juhani Saarinen, Jari Helin, Tero Satomaa, Susanne K. Wiedmer   +8 more
doaj   +1 more source

Recent Advances in Bioanalysis of Cephalosporins Toward Green Sample Preparation

Journal of Separation Science, Volume 48, Issue 2, February 2025.
ABSTRACT This review highlights recent advances in the bioanalysis of cephalosporins using liquid chromatographic methods, focusing on green sample preparation (GSP) techniques. Cephalosporins, a class of β‐lactam antibiotics, are critical in combating bacterial infections but present challenges related to drug resistance and toxicity.
Maria Kousi, Natasa P. Kalogiouri, Victoria F. Samanidou   +2 more
wiley   +1 more source

Microscale immunoaffinity SPE and MEKC in fast determination of testosterone in male urine

, 2007
Conventional methods for the determination of testosterone in body fluids typically suffer from poor recovery, lack of specificity, complex sample pretreatment, or the need for derivatization.
Takkinen, Kristiina, Amundsen, Lotta K., Rovio, Stella, Sirén, Heli, Nevanen, Tarja K.   +4 more
core   +1 more source

Use of Mixed Micelles in Micellar Electrokinetic Chromatography Method for Determination of Dexamethasone, Prednisolone and Triamcinolone in Pharmaceutical Formulations

Separations
The unregulated consumption of corticosteroids causes significant adverse effects on human health. Therefore, it is important to develop methodologies that allow their analysis in pharmaceutical matrices with competitive analysis times and costs.
Karen A. Escamilla-Lara, Israel S. Ibarra, Jorge Lopez-Tellez, Jose A. Rodriguez   +3 more
doaj   +1 more source

Method Development and Clinical Utility for Simultaneous Measurement of 21‐Deoxycortisol, 17‐Hydroxyprogesterone, Cortisol, and Cortisone Levels in Human Plasma Using UHPLC‐MS/MS

Advances in Pharmacological and Pharmaceutical Sciences, Volume 2025, Issue 1, 2025.
A simple and efficient validated assay for quantifying 21‐deoxycortisol (21‐DOC), 17‐hydroxyprogesterone (17‐OHP), cortisol, and cortisone in human plasma has been developed using ultra‐high performance liquid chromatography coupled with tandem mass spectrometry (UHPLC‐MS/MS).
Syed N. Alvi, Saleh Al dgither, Ali Al-Odaib, Koteshwara Mudigonda   +3 more
wiley   +1 more source

Determinación de residuos de deoxicolato de sodio en formulaciones vacunales por cromatografía electrocinética micelar

VacciMonitor, 2011
El deoxicolato de sodio (DCNa) es el surfactante por excelencia empleado en la industria biofarmacéutica para la solubilización de vesículas de membrana externa.
Yaima Merchán, Silvia Lucangioli, Clyde Carducci, Esther María Fajardo, Jeannete Rico, Yolexis Tamayo, Ileana Delgado   +6 more
doaj  

Determination of Total Apigenin in Herbs by Micellar Electrokinetic Chromatography with UV Detection

Journal of Analytical Methods in Chemistry, 2016
Apigenin is a naturally occurring plant flavone that exhibits strong antioxidant, anti-inflammatory, and antitumor properties. A MEKC-UV based method was developed for the determination of total apigenin in selected herbs. Application of pseudostationary
Rafał Głowacki, Paulina Furmaniak, Paweł Kubalczyk, Kamila Borowczyk   +3 more
doaj   +1 more source

Centrifuge microextraction coupled with sweeping-MEKC to analyze trace steroid hormones in urine samples

, 2011
A novel method that combines two concentration techniques, off-line centrifuge microextraction (CME) and on-line sweeping, is used to determine trace steroids in urine by micellar electrokinetic chromatography (MEKC). The CME-sweeping-MEKC is a promising
Tian, Yun, Sun, Junling, Zeng, Zhaorui, zrzeng@whu.edu.cn, Xu, Ying, Zeng, ZR (reprint author), Wuhan Univ, Dept Chem, Wuhan 430072, Peoples R China, Fang, Huaifang, Yang, Fangxing   +7 more
core