Results 91 to 100 of about 54,757 (260)

Method Development for the Analysis of Pharmaceuticals with Acethylcholinesterase Activity in Water Using HPLC-DAD and Solid Phase Extraction

Indonesian Journal of Chemistry, 2014
An SPE followed by HPLC-DAD method with ion pair chromatography technique to analyze pharmaceuticals with acethylcholinesterase activity including pyridostigmine (PYR), galathamine (GAL), neostigmine (NEO), eserine (ESE), and donepezil (DON) in water ...
Samuel Budi Wardhana, Marit Kolb, Müfit Bahadir, Bambang Purwono, Tutik Dwi Wahyuningsih   +4 more
doaj   +1 more source

New high-performance liquid chromatography-dad method for analytical determination of arbutin and hydroquinone in rat plasma [PDF]

, 2015
Natural substances present in herbal preparations should be carefully used because they can give toxic or therapeutic effects despite of their amount or the way of administration.
Altieri, I., D'Amore, E., Gallo, F. R., Multari, G., PAGLIUCA, GIORDANA, Panzini, G.   +5 more
core   +2 more sources

Simultaneous Quantification of Phenolic Compounds and Capsaicinoids in Chili Peppers Using Ultra‐High Performance Liquid Chromatography‐Tandem Mass Spectrometry

Food Safety and Health, EarlyView.
A UHPLC‐MS/MS method was developed to simultaneously quantify four capsaicinoids and 19 phenolic compounds, the key bioactive constituents in chili peppers. It exhibits high sensitivity, low matrix effects, excellent accuracy, and precision, enabling reliable detection in chili samples.
Shaoyun Wu, Xue Feng, Haixiao Ma, Yinfeng Zhao, Zhenying Sun, Meiling Zhang, Zehua Ke, Jing Qiu, Yongzhong Qian, Guiqiao Liu, Rui Weng   +10 more
wiley   +1 more source

Simultaneous and Direct Determination of Vancomycin and Cephalexin in Human Plasma by Using HPLC-DAD Coupled with Second-Order Calibration Algorithms

Journal of Analytical Methods in Chemistry, 2012
A simple, rapid, and sensitive method for the simultaneous determination of vancomycin and cephalexin in human plasma was developed by using HPLC-DAD with second-order calibration algorithms.
Le-Qian Hu, Chun-Ling Yin, Ya-Hui Du, Zhi-Peng Zeng   +3 more
doaj   +1 more source

A new internal standard for HPLC assay of conjugated linoleic acid in animal tissues and milk

Czech Journal of Animal Science, 2011
A new method for the quantification of underivatized conjugated linoleic acid (CLA) isomers and CLA-metabolites by silver ion liquid chromatography (Ag+-HPLC) with photodiode array detection (DAD) is described.
M. Czauderna, J. Kowalczyk, M. Marounek, J.P. Michalski, A.J. Rozbicka-Wieczorek, K.A. Krajewska   +5 more
doaj   +1 more source

Acantholippia salsoloides : Phytochemical Composition and Biological Potential of a Thujonic Population [PDF]

, 2019
Acantholippia salsoloides (Verbenaceae) is an aromatic plant widespread in the Andean region. The infusion (leaves and flowers) is widely used as a digestive stimulant as well as for the treatment of various diseases in traditional medicine.
Celaya, Liliana Soledad, Silva, Luís R., Viturro, Carmen Ines   +2 more
core   +1 more source

Food Contamination and Safety in Nigeria: A Systematic Synthesis of Heavy Metals, Microbial Pathogens, and Health Risk Metrics

Food Safety and Health, EarlyView.
This is an infographic driver of food contaminants and health effects. ABSTRACT Food safety remains a critical challenge in Nigeria due to rapid urbanization and weak regulatory enforcement. This systematic review synthesizes empirical evidence from 2015 to 2025 to characterize food contaminant profiles and associated human health risks in Nigeria ...
Cecilia Nwadiuto Obasi, Naomi A. Mogborukor, Baridoo Donatus Dooka, Polycarp Dauda Madaki, Chiara Frazzoli, Mohamed Haddad, Orish Ebere Orisakwe   +6 more
wiley   +1 more source

Validasi Metode Uji Konfirmasi Senyawa Golongan Benzodiazepin dengan Hplc-dad [PDF]

, 2013
Telah dilakukan validasi metode uji konfirmasi senyawa golongan benzodiazepin, yang meliputi spesifisitas, selektivitas, presisi, ketahanan (robustness), serta sensitivitas dengan HPLC-DAD.
Ali, K. T. (Khatija), Susanti, N. M. (Ni), Wirasuta, I. M. (I)   +2 more
core  

Half a Century of Per‐ and Polyfluoroalkyl Substances in Northern Gannet Eggs: Impact of Regulations

Journal of Applied Toxicology, EarlyView.
ABSTRACT Per‐ and polyfluoroalkyl substances (PFAS), known as “forever chemicals”, are persistent organic pollutants that have been widely used in the industry across the globe for many decades. Their chemical stability, bioaccumulation, and toxicity pose major environmental and health risks. This study examines temporal trends in the concentrations of
Anaïs Fournier, Anaïs Kerric, Raphaël A. Lavoie   +2 more
wiley   +1 more source

Potential of solid‐state microwaves in lab‐scale chemical‐process development

Journal of Chemical Technology &Biotechnology, EarlyView.
Abstract BACKGROUND The integration of a solid‐state microwave (MW) generator into a newly designed, versatile MW reactor ensures improved energy efficiency, precise process control and broader application potential. In its most particular feature, the device supports the modification of dielectric‐radiation orientation and can be operated under ...
Christian Cravotto, Clelia Aimone, Giorgio Capaldi, Giorgio Grillo, Giancarlo Cravotto   +4 more
wiley   +1 more source