Results 11 to 20 of about 2,051 (162)

Capillary Electrophoresis With Amperometric Detection for Neurotransmitter Analysis: Principles, Electrode Materials, Methodologies, and Applications. [PDF]

open access: yesElectrophoresis
This review provides a comprehensive summary of monoamine neurotransmitter analysis by capillary electrophoresis with amperometric detection. Fundamental principles of amperometric detection, electrode positioning strategies, and approaches to high‐voltage decoupling are described, followed by a critical comparison of electrode materials, selection of ...
Kubáň P   +3 more
europepmc   +2 more sources

Determination of Monoethylene Glycol in Gas Condensate Samples by Microchip Micellar Electrokinetic Chromatography Integrated With Capacitively Coupled Contactless Conductivity Detection. [PDF]

open access: yesElectrophoresis
ABSTRACT This study describes the use of microchip micellar electrokinetic chromatography (MEKC) integrated with capacitively coupled contactless conductivity detection (C4D) for the determination of monoethylene glycol (MEG) in gas condensate samples.
Pereira MML   +6 more
europepmc   +2 more sources

Ultrasound-Assisted Extraction Coupled With Derivatization for Sensitive High-Performance Liquid Chromatography Determination of Resorcinol in Permanent Hair Dyes. [PDF]

open access: yesJ Sep Sci
The study presents a sensitive HPLC‐fluorescence method for determining resorcinol in hair dyes using dopamine derivatization and ultrasound‐assisted extraction. The approach enhances selectivity and achieves low detection limits, with validated accuracy and robustness. Application to commercial products confirms compliance with regulations. The method
Ntorkou M   +3 more
europepmc   +2 more sources

Electrokinetic Chromatography-based Micro Methods for Separation and Physiochemical Characterization of Very Hydrophobic Pharmaceuticals. [PDF]

open access: yesJ Sep Sci
ABSTRACT This study established an efficient separation of the highly hydrophobic analytes fenofibrate, orlistat, lumefantrine and a micelle marker using microemulsion electrokinetic capillary chromatography. A starting buffer with sodium dodecyl sulphate, heptane and butan‐1‐ol resulted in a partial separation of the analytes.
Minkner R, Wätzig H.
europepmc   +2 more sources

Analytical Techniques for the Determination of Paracetamol and Ibuprofen Combination. [PDF]

open access: yesJ Anal Methods Chem
The fixed‐dose combination (FDC) of ibuprofen (IBU) and paracetamol (PAR) has emerged as a preferred option in pain management, owing to its distinct practical advantages. Both drugs have well‐documented efficacy and safety profiles, providing synergistic pain relief through complementary mechanisms of action.
Reid IOA, Osman SM, Bakheet SM.
europepmc   +2 more sources

Simultaneous Enantioseparation of Three Chiral Antifungal Pesticides by Hydroxypropyl-γ-CD-Modified Micellar Electrokinetic Chromatography [PDF]

open access: yesJournal of Analytical Methods in Chemistry, 2023
Simultaneous enantioseparation of three commonly used chiral antifungal pesticides (diniconazole, hexaconazole, and imazalil) was first studied based on micellar electrokinetic chromatography (MEKC) with hydroxypropyl-γ-CD (HP-γ-CD) as chiral selector ...
Xiaoyu Yang
doaj   +2 more sources

Quantitative estimation of enzymatic released specific oligosaccharides from Hericium erinaceus polysaccharides using CE-LIF [PDF]

open access: yesJournal of Pharmaceutical Analysis, 2023
Polysaccharides exhibit multiple pharmacological activities which are closely related to their structural features. Therefore, quantitatively quality control of polysaccharides based on their chemical characteristics is important for their application in
Yong Deng, Jing Zhao, Shaoping Li
doaj   +2 more sources

Development of a sustainable multianalyte MEKC method for quantitation of the antihyperlipidemic drugs ezetimibe together with three statins. Greenness and whiteness appraisal studies [PDF]

open access: yesBMC Chemistry, 2023
Implementing powerful and sustainable research that complies with green analytical chemistry (GAC) and white analytical chemistry (WAC) fundamentals can downsize the environmental compliance costs and fruitfully affects practical and economic issues ...
Haydi S. Elbordiny   +3 more
doaj   +2 more sources

Capillary Zone Electrophoresis for the Analysis of Phenolic Preservatives in Plasma and Insulin Formulations Using Salting-Out Assisted Liquid-Liquid Extraction. [PDF]

open access: yesElectrophoresis
A rapid and reliable SALLE–CZE–UV method was developed for the determination of phenolic preservatives in insulin formulations and human plasma. The approach provides efficient extraction, fast separation (< 6 min), and excellent sensitivity, precision, and recovery, meeting regulatory requirements for accurate quantification.
Dadouch M, Ladner Y, Perrin C.
europepmc   +2 more sources

Simple simultaneous analysis of various cardiovascular drug mixtures with vincamine: comparative eco-friendly assessment [PDF]

open access: yesBMC Chemistry
The development of two eco-friendly analytical methods for the simultaneous determination of eight cardiovascular drugs; hydrochlorothiazide (HCT), captopril (CPL), lisinopril (LSP), valsartan (VAL), atorvastatin (ATR), bisoprolol (BSL), amlodipine (AML)
Sara S. Mourad   +2 more
doaj   +2 more sources

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