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Determination of Hormones in Wastewater Using Rotating Disk Sorptive Extraction and Gas Chromatography-Mass Spectrometry
(Taylor & Francis, 2016)
A simple and green analytical method based on the use of rotating disk sorptive extraction is reported for the simultaneous determination of hormones in wastewater. The analytes were 17-estradiol, estriol, and 17 ...
KS-SIFT: a keyframe extraction method based on local features
(Institute of Electrical and Electronics Engineers - IEEETaichung, 2014-12)
In this work we propose a new keyframe extraction method based on SIFT local features. We extracted feature vectors from a carefully selected group of frames from a vídeo shot, analyzing those vectors to eliminate near ...
Serial extraction: Variables associated to the extraction of premolars
(2011-09-01)
Objective: To determine the frequency of patients who require extraction of permanent premolars among those treated with extraction of deciduous teeth for the correction of incisor crowding in the mixed dentition and analyze ...
Comparative Determination of Anthocyanins, Low Molecular Weight Phenols, and Flavanol Fractions in Vitis vinifera L. cv Carmenere Skins and Seeds by Differential Solvent Extraction and High-Performance Liquid Chromatography
(Taylor & Francis, 2016)
Although numerous methods have been used to extract polyphenols from vegetal sources, these
procedures have been rarely compared directly. Herein, four maceration and extraction methods for
phenolics from Carmenere (Vitis ...
Extraction of Bioactive Proteins from Seeds (Corn, Sorghum, and Sunflower) and Sunflower Byproduct: Enzymatic Hydrolysis and Antioxidant Properties
(Bentham Science Publ Ltd, 2021-01-01)
Background: Food proteins have benefits for human health, which justifies their production and use. In this context, the use of seeds and byproducts that would be otherwise discarded is highlighted in the present work, to ...
A Comprehensive LC-DAD-QTOF-MS Method for Dereplication of Bioactive Compounds in Senna Extracts
(Springer, 2021-03-01)
A reversed-phase analytical method was developed and validated by using a combination of high-performance liquid chromatography with diode array detection and ultra-high-performance liquid chromatography-quadrupole ...
Methods and extractants to evaluate silicon availability for sugarcane
(2018-12-01)
The correct evaluation of silicon (Si) availability in different soil types is critical in defining the amount of Si to be supplied to crops. This study was carried out to evaluate two methods and five chemical Si extractants ...