Results 51 to 60 of about 4,761 (209)

Effectiveness of flow obstructions in enhancing electro-osmotic flow [PDF]

open access: yes, 2017
In this paper the influence of obstructions on micro-channel electroosmotic flow is investigated for the first time. To carry out such a study, regular obstructions are introduced into micro-channels and flow rates are numerically calculated. The effect
A Rathore   +32 more
core   +1 more source

Contactless Conductivity Detection for Capillary Electrophoresis—Developments From 2020 to 2024

open access: yesELECTROPHORESIS, Volume 46, Issue 13-14, Page 829-862, July 2025.
ABSTRACT The review covering the development of capillary electrophoresis with capacitively coupled contactless conductivity detection from 2020 to 2024 is the latest in a series going back to 2004. The article considers applications employing conventional capillaries and planar lab‐on‐chip devices as well as fundamental and technical developments of ...
Peter C. Hauser, Pavel Kubáň
wiley   +1 more source

A chiral metal-organic framework {(HQA)(ZnCl2)(2.5H2O)}n for the enantioseparation of chiral amino acids and drugs

open access: yesJournal of Pharmaceutical Analysis, 2023
Chiral metal-organic frameworks (CMOFs) with enantiomeric subunits have been employed in chiral chemistry. In this study, a CMOF formed from 6-methoxyl-(8S,9R)-cinchonan-9-ol-3-carboxylic acid (HQA) and ZnCl2, {(HQA)(ZnCl2)(2.5H2O)}n, was constructed as ...
Xiangtai Zheng   +5 more
doaj   +1 more source

Refractive index sensor based on a 1D photonic crystal in a microfluidic channel [PDF]

open access: yes, 2010
A refractive index sensor has been fabricated in silicon oxynitride by standard UV lithography and dry etching processes. The refractive index sensor consists of a 1D photonic crystal (PhC) embedded in a microfluidic channel addressed by fiber-terminated
Pedro S. Nunes   +21 more
core   +1 more source

Waste PET Plastic‐Derived UIO‐66(Zr)‐MOF Adsorbent for Dispersive Solid Phase Extraction and Removal of Penicillin Antibiotics Water Systems

open access: yesAnalytical Science Advances, Volume 6, Issue 1, June 2025.
ABSTRACT The extensive use or misuse of broad‐spectrum antibiotics such as penicillins and their existence in various water bodies is still one of increasing global concern due to their persistent nature, which could potentially lead to human health and environmental risks.
Inga Skans   +2 more
wiley   +1 more source

Emerging Developments in Separation Techniques and Analysis of Chiral Pharmaceuticals

open access: yesMolecules, 2023
Chiral separation, the process of isolating enantiomers from a racemic mixture, holds paramount importance in diverse scientific disciplines. Using chiral separation methods like chromatography and electrophoresis, enantiomers can be isolated and ...
Sulaiman Al-Sulaimi   +5 more
doaj   +1 more source

Capillary electrophoresis-integrated immobilized enzyme reactors

open access: yesReviews in Analytical Chemistry, 2016
Online enzyme assay based on capillary electrophoresis (CE) offers several advantages for the assay, such as low consumption of samples, easy automation of all steps, and less requirement of sample work-up.
Liu Xiaoxia, Yang Jiqing, Yang Li
doaj   +1 more source

Advances in monolithic silica columns for high-performance liquid chromatography

open access: yesJournal of Analytical Science and Technology, 2017
In a monolithic column stationary phase contains a continuous porous material, sealed against the wall of a tube, instead of beads. Due to the decrease in chemical usage, sample usage, improved sensitivity, reusable frit-less columns and less back ...
Gaurav Sharma   +2 more
doaj   +1 more source

Application of 2,3-Naphthalenediamine in Labeling Natural Carbohydrates for Capillary Electrophoresis [PDF]

open access: yes, 2012
Neutral and acidic monosaccharide components in <em>Ganoderma lucidum</em> polysaccharide are readily labeled with 2,3-naphthalenediamine, and the resulting saccharide-naphthimidazole (NAIM) derivatives are quantified by capillary ...
Chien-Yuan Kuo   +12 more
core   +1 more source

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