Results 1 to 10 of about 656,473 (300)

Design, optimization, and validation of chemometrics-assisted spectrophotometric methods for simultaneous determination of etodolac and thiocolchicoside in pharmaceuticals

Journal of Analytical Science and Technology, 2019
Etodolac (ET) is a nonsteroidal anti-inflammatory drug (NSAID) that shows anti-inflammatory, analgesic, and antipyretic activities. Various NSAIDs have been demonstrated to enhance analgesia such as thiocolchicoside (TC) which is also an anti ...
Mevlut Albayrak, Fatma Demirkaya-Miloglu, Onur Senol, Elmas Polatdemir   +3 more
doaj   +1 more source

Green Approaches to Sample Preparation Based on Extraction Techniques

Molecules, 2020
Preparing a sample for analysis is a crucial step of many analytical procedures. The goal of sample preparation is to provide a representative, homogenous sample that is free of interferences and compatible with the intended analytical method.
Alshymaa A. Aly, Tadeusz Górecki
doaj   +1 more source

A multichannel electrochemical all-solid-state wearable potentiometric sensor for real-time sweat ion monitoring

Electrochemistry Communications, 2019
There is considerable interest in wearable potentiometric ion sensors that can provide information about the quality of a person's health by monitoring ion concentration levels in biofluids.
Qingbo An, Shiyu Gan, Jianan Xu, Yu Bao, Tongshun Wu, Huijun Kong, Lijie Zhong, Yingming Ma, Zhongqian Song, Li Niu   +9 more
doaj   +1 more source

Análise química da biomassa - uma revisão das técnicas e aplicações

Química Nova, 2014
Use of biomass as an alternative to nonrenewable feedstock for energy, materials, and chemicals is currently a prominent theme for industry and R Countries like Brazil, USA, and Germany are spending resources and efforts to promote a green economy based ...
Sílvio Vaz Júnior, Itânia Pinheiro Soares   +1 more
doaj   +1 more source

Microextraction for ambient ionization mass spectrometry analysis

Advances in Sample Preparation, 2022
Ambient ionization allows desorption of molecules and formation of ions directly from samples in native environment. Compared with traditional ionization techniques, it has unique features of simplicity and convenience, thus has attracted considerable ...
Yijing Liu, Yuhan Shang, Qiang Ma
doaj   +1 more source

An overview of the Brazilian contributions to Green Analytical Chemistry

Anais da Academia Brasileira de Ciências, 2019
: Green Analytical Chemistry (GAC) is a research field that seeks for more sustainable analytical approaches to minimize the toxicity and amounts of wastes without hindering the analytical performance.
MARIANA R. GAMA, WANESSA R. MELCHERT, THIAGO R.L.C. PAIXÃO, FÁBIO R.P. ROCHA   +3 more
doaj   +1 more source

Feasibility of Mass-Spectrometry to Lower Cost and Blood Volume Requirements for Assessment of B Vitamins in Patients Undergoing Bariatric Surgery

Metabolites, 2020
Bariatric surgery induces deficiencies in a combination of B vitamins. However, high costs and a large blood volume requirement are barriers to routine screening.
Seth Armah, Mario G. Ferruzzi, Nana Gletsu-Miller   +2 more
doaj   +1 more source

Recent Analytical Approaches for the Study of Bioavailability and Metabolism of Bioactive Phenolic Compounds

Molecules, 2022
The study of the bioavailability of bioactive compounds is a fundamental step for the development of applications based on them, such as nutraceuticals, functional foods or cosmeceuticals.
Álvaro Fernández-Ochoa, María de la Luz Cádiz-Gurrea, Patricia Fernández-Moreno, Alejandro Rojas-García, David Arráez-Román, Antonio Segura-Carretero   +5 more
doaj   +1 more source

Betalain: A Particular Class of Antioxidant Pigment

Natural Product Communications, 2011
We have analyzed the stability of betalains in juices prepared from Moroccan yellow cactus pears ( Opuntia ficus indica (L.) Mill.) as a function of temperature and pH. The experiments were carried out at temperatures ranging from 80 to 100°C with juices
Hasna El Gharras
doaj   +1 more source

Metabolomics of Solanum lycopersicum Infected with Phytophthora infestans Leads to Early Detection of Late Blight in Asymptomatic Plants

Molecules, 2018
Tomato crops suffer attacks of various pathogens that cause large production losses. Late blight caused by Phytophthora infestans is a devastating disease in tomatoes because of its difficultly to control.
Paula Galeano Garcia, Fábio Neves dos Santos, Samantha Zanotta, Marcos Nogueira Eberlin, Chiara Carazzone   +4 more
doaj   +1 more source