Optimization of Extract Method for Cynomorium songaricum Rupr. by Response Surface MethodologyJournal of Analytical Methods in Chemistry - 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
The Application of FT-IR Spectroscopy for Quality Control of Flours Obtained from Polish ProducersJournal of Analytical Methods in Chemistry - 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
Rapid Screening and Quantitative Determination of Active Components in Qing-Hua-Yu-Re-Formula Using UHPLC-Q-TOF/MS and HPLC-UVJournal of Analytical Methods in Chemistry - Tập 2018 - Trang 1-11 - 2018
Xin Shao, Jie Zhao, Xu Wang, Yi Tao
Qing-Hua-Yu-Re-Formula (QHYRF), a new herbal preparation, has been extensively
used for treating diabetic cardiomyopathy. However, the chemical constituents of
QHYRF remain uninvestigated. In the present study, rapid ultrahigh-performance
liquid chromatography coupled with quadrupole-time-of-flight mass spectrometry
(UHPLC-Q-TOF/MS) was used to qualitatively analyze the components of QHYRF.
Qualit... hiện toàn bộ
A Simple and Quick Method for the Determination of Pesticides in Environmental Water by HF-LPME-GC/MSJournal of Analytical Methods in Chemistry - 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
Fabrication of SiO2/PEGDA Inverse Opal Photonic Crystal with Fluorescence Enhancement EffectsJournal of Analytical Methods in Chemistry - Tập 2021 - 2021
Dinh, Van-Phuc, Nguyen, Duy-Khoi, Nguyen, Quang-Hung, Luu, Thi-Thuy, Pham, Thi Hai Yen, Vu, Thi Thu Ha, Chuang, Han-Sheng, Pham, Hong-Phong
The present paper reports the fabrication of inverse opal photonic crystals
(IOPCs) by using SiO2 spherical particles with a diameter of 300 nm as an opal
photonic crystal template and poly(ethylene glycol) diacrylate (PEGDA) as an
inverse opal material. Characteristics and fluorescence properties of the
fabricated IOPCs were investigated by using the Fourier transform infrared
spectroscopy (FTIR)... hiện toàn bộ
Model Analytical Development for Physical, Chemical, and Biological Characterization ofMomordica charantiaVegetable DrugJournal of Analytical Methods in Chemistry - 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
Removal of Heavy Metal Ion Using Polymer-Functionalized Activated Carbon: Aspects of Environmental Economic and Chemistry EducationJournal of Analytical Methods in Chemistry - Tập 2020 - Trang 1-13 - 2020
Hoang Thu Ha, Nguyen Thi Huong, Le Linh Dan, Nguyen Duy Tung, Vinh bao Trung, Tran Dinh Minh
Numerous countries have shown signs of environmental pollution to prioritize
economic growth and benefits, leading to seriously contaminated waters. This
work indicated the method to synthesize a green material, which could remove
contaminants to protect the natural environment. The porosity and functionality
effects of amine-functionalized activated carbon (AFAC) enhanced the removal of
toxic hea... hiện toàn bộ
A Stability-Indicating HPLC-DAD Method for Determination of Stiripentol: Development, Validation, Kinetics, Structure Elucidation and Application to Commercial Dosage FormJournal of Analytical Methods in Chemistry - 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