Results 41 to 50 of about 604,617 (209)
Multivariate optimization in micellar electrokinetic capillary chromatography
, 2000 The optimization of the organic modifier concentration in micellar electrokinetic capillary chromatography (MECC) has been achieved by a uniform design and iterative optimization method, which has been developed for the optimization of composition of the
Zou, HF +9 more
core +1 more source
Separations, 2021 A large volume sample stacking (LVSS) method in micellar electrokinetic chromatography (MEKC) with diode array detector was developed for the simultaneous separation and analysis of five compounds: protocatechuic acid, protocatechuic aldehyde, caffeic ...
Lili Wang +7 more
doaj +1 more source
ELECTROPHORESIS, Volume 47, Issue 6, Page 450-478, June 2026.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 ...
Petr Kubáň +3 more
wiley +1 more source
Micellar and microemulsion electrokinetic chromatography of hop bitter acids
, 1996 The elution order of the hop alpha- and beta-acids has been studied under different modes of electrokinetic separation. A model is advanced to explain the shorter migration times of the more hydrophobic beta-acids compared to the alpha-acids in micellar ...
Roman Szücs +5 more
core +1 more source
Applied Sciences, 2019 A low-cost, simple, and fast method utilizing micellar electrokinetic chromatography for the simultaneous determination of seven biogenic amines and two amino acids was developed.
Chih-Ying Huang +4 more
doaj +1 more source
Influence of gamma irradiation and microwave on the capsaicin and the volatile compounds of red chilli (capsicum annum) [PDF]
مجلة بحوث التربية النوعية, 2010 Red chilli was irradiated with two types of radiations; gamma and microwave. The effects were evaluated in the changes in the capsaicin concentration, and the volatile oil composition through the methods: micellar electrokinetic chromatography and gas ...
محمد کمال السيد يوسف +3 more
doaj +1 more source
Sensing Techniques for Organochlorides through Intermolecular Interaction with Bicyclic Amidines
Biosensors, 2021 Toxic organochloride molecules are widely used in industry for various purposes. With their high volatility, the direct detection of organochlorides in environmental samples is challenging.
Jong-Won Park +4 more
doaj +1 more source
Journal of Separation Science, Volume 49, Issue 5, May 2026.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
Marianna Ntorkou +3 more
wiley +1 more source
Heavy atom enhanced room-temperature phosphorimetry for ultratrace determination of harmane
Química Nova, 2008 Harmane has been proposed for the treatment of epilepsy, AIDS and leshmaniosis. Its room-temperature phosphorescence was induced using either AgNO3 or TlNO3, enabling absolute limits of detection of 0.12 and 2.4 ng respectively, with linear dynamic ...
Flávia F. de Carvalho Marques +2 more
doaj +1 more source
ELECTROPHORESIS, Volume 47, Issue 4, Page 308-319, April 2026.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.
Meriem Dadouch +2 more
wiley +1 more source