Sesquiterpene Lactones fromArtemisiaGenus: Biological Activities and Methods of Analysis Tập 2015 - Trang 1-21 - 2015
Bianca Ivãnescu, Anca Miron, Andreia Corciovă
Sesquiterpene lactones are a large group of natural compounds, found primarily
in plants ofAsteraceaefamily, with over 5000 structures reported to date. Within
this family, genusArtemisiais very well represented, having approximately 500
species characterized by the presence of eudesmanolides and guaianolides,
especially highly oxygenated ones, and rarely of germacranolides. Sesquiterpene
lactones... hiện toàn bộ
The Application of FT-IR Spectroscopy for Quality Control of Flours Obtained from Polish Producers Tập 2017 - Trang 1-9 - 2017
Katarzyna Sujka, P. Koczoń, A. Ceglińska, Magdalena Reder, Hanna Ciemniewska‐Żytkiewicz
Samples of wheat, spelt, rye, and triticale flours produced by different Polish
mills were studied by both classic chemical methods and FT-IR MIR spectroscopy.
An attempt was made to statistically correlate FT-IR spectral data with
reference data with regard to content of various components, for example,
proteins, fats, ash, and fatty acids as well as properties such as moisture,
falling number, a... hiện toàn bộ
Recent Developments in the Speciation and Determination of Mercury Using Various Analytical Techniques Tập 2015 - Trang 1-18 - 2015
Lakshmi Narayana Suvarapu, Sung‐Ok Baek
This paper reviews the speciation and determination of mercury by various
analytical techniques such as atomic absorption spectrometry, voltammetry,
inductively coupled plasma techniques, spectrophotometry, spectrofluorometry,
high performance liquid chromatography, and gas chromatography. Approximately
126 research papers on the speciation and determination of mercury by various
analytical techni... hiện toàn bộ
A Simple and Quick Method for the Determination of Pesticides in Environmental Water by HF-LPME-GC/MS Tập 2016 - Trang 1-11 - 2016
Helvécio Costa Menezes, Breno P. Paulo, Maria José Nunes de Paiva, Zenilda de Lourdes Cardeal
This paper describes a simple and quick method for sampling and also for
carrying out the preconcentration of pesticides in environmental water matrices
using two-phased hollow fiber liquid phase microextraction (HF-LPME). Factors
such as extraction mode, time, solvents, agitation, and salt addition were
investigated in order to validate the LPME method. The following conditions were
selected: 6 c... hiện toàn bộ
Model Analytical Development for Physical, Chemical, and Biological Characterization ofMomordica charantiaVegetable Drug Tập 2016 - Trang 1-15 - 2016
Deysiane Oliveira Brandão, Geovani Pereira Guimarães, Ravely Lucena Santos, Fernando José de Lima Ramos Júnior, Karla Monik Alves da Silva, Fábio Santos de Souza, Rui Oliveira Macêdo
Momordica charantiais a species cultivated throughout the world and widely used
in folk medicine, and its medicinal benefits are well documented, especially its
pharmacological properties, including antimicrobial activities. Analytical
methods have been used to aid in the characterization of compounds derived from
plant drug extracts and their products. This paper developed a methodological
model ... hiện toàn bộ
Optimization of Extract Method for Cynomorium songaricum Rupr. by Response Surface Methodology Tập 2017 - Trang 1-7 - 2017
Xiang Zhang, Caimei Gu, Bashir Ahmad, Huang Lin-fang
The present study aimed to evaluate the quality of Cynomorium songaricum Rupr.
from different producing areas, which is an edible, holoparasitic, and desert
plant that has been used in traditional medicine for improving immunity and
kidney function and treating constipation. We optimized the extract conditions
by response surface methodology (RSM) and determined the content of gallic acid,
protoca... hiện toàn bộ
A Stability-Indicating HPLC-DAD Method for Determination of Stiripentol: Development, Validation, Kinetics, Structure Elucidation and Application to Commercial Dosage Form Tập 2014 - Trang 1-10 - 2014
Hany W. Darwish, Ali S. Abdelhameed, Mohamed I. Attia, Ahmed H. Bakheit, Nasr Y. Khalil, Abdulrahman A. Al‐Majed
A rapid, simple, sensitive, and accurate isocratic reversed-phase
stability-indicating high performance liquid chromatography method has been
developed and validated for the determination of stiripentol and its degradation
product in its bulk form and pharmaceutical dosage form. Chromatographic
separation was achieved on a Symmetry C18 column and quantification was achieved
using photodiode array ... hiện toàn bộ