Results 21 to 30 of about 4,637,980 (251)

Investigating the relationship between the Khami reservoir horizon in the Chilingar and Garangan oilfields in the Southern Dezful Embayment using surface geochemistry [PDF]

open access: yesJournal of Stratigraphy and Sedimentology Researches
Understanding reservoir connectivity is critical for reducing exploration risk and optimizing field development. This study uses surface geochemistry techniques to investigate the relationship between the Khami reservoir horizon in the Chilingar and ...
Bahram Alizadeh   +1 more
doaj   +1 more source

Acid-Resistant Nanofiltration Facilitated Nonsaponified Extraction of Rare-Earth Elements

open access: yes, 2023
The conventional extraction of rare-earth (RE) elements by alkali saponification consumes plenty of alkalis and produces enormous amounts of salt effluents.
Linglong Shan (3643369)   +19 more
core   +1 more source

Extraction and characterization of pectin from selected indigenous fruits for further commercial application in food industries

open access: yesFood Agricultural Sciences and Technology (FAST), 2023
The aims of this study were to extract pectin from selected indigenous fruits, including breadfruit, papaya and santol as well as investigate the chemical and physical properties of extracted pectin to address the potential of these fruits
Jittawan Kubola   +3 more
doaj  

Isolation and Identification of Ellagic Acid from Rosa roxburghii Tratt and Its Optimization of Extraction Process

open access: yesShipin gongye ke-ji, 2023
Objective: The purpose of this study was to establish a method for the isolation and purification of ellagic acid from Rosa roxburghii Tratt and to investigate the optimal acidification process condition for extraction of ellagic acid from Rosa ...
Yujie LIU   +8 more
doaj   +1 more source

Nucleic acid extraction from complex biofluid using toothpick-actuated over-the-counter medical-grade cotton [PDF]

open access: yes, 2022
Nucleic acid amplification technique (NAAT)-assisted detection is the primary intervention for pathogen molecular diagnostics. However, NAATs such as quantitative real-time polymerase chain reaction (qPCR) require prior purification or extraction of ...
Mrittika, Sengupta   +6 more
core   +2 more sources

Metais pesados em solos de uma topolitosseqüência do Triângulo Mineiro Heavy metal in soils of a topolithose-quence in the Triângulo Mineiro, State of Minas Gerais (Brazil)

open access: yesRevista Brasileira de Ciência do Solo, 2004
O presente estudo teve por objetivo determinar os teores de metais pesados em solos de uma topolitosseqüência localizada no Triângulo Mineiro, Minas Gerais, para avaliar a contribuição potencial na disponibilidade destes metais em ambientes com solos de ...
T. S. Oliveira, L. M. Costa
doaj   +1 more source

Distribution and origin of major and trace elements (particularly REE, U and Th) into labile and residual phases in an acid soil profile (Vosges Mountains, France). [PDF]

open access: yes, 2004
A seven step sequential extraction procedure has been conducted on a podzolic soil profile from the Vosges Mountains in order to determine the ability of several elements to be released to the environment.
Aubert, Dominique   +2 more
core   +1 more source

Optimization of Subcritical Water Extraction of Rosmarinic Acid from Perilla (Perilla frutescens L.) Seed Meal and Its Antioxidant Activity

open access: yesShipin gongye ke-ji, 2023
Subcritical water extraction (SWE), a green and environmentally friendly extraction technology, was successfully used to extract rosmarinic acid from Perilla seed meal (PSM). Based on the results of single-factor experiments, three-factor and three-level
Linlin YAN   +3 more
doaj   +1 more source

TS-BTPhen as a Promising Hydrophilic Complexing Agent for Selective Am(III) Separation by Solvent Extraction [PDF]

open access: yes, 2015
The novel hydrophilic back-extraction agent TS-BTPhen (3,3’,3’’,3’’’-[3-(1,10-phenanthroline-2,9-diyl)-1,2,4-triazine-5,5,6,6-tetrayl]tetrabenzenesulfonic acid) was tested for its selectivity towards Am(III) over Cm(III) and Eu(III) with a TODGA (N,N,N ...
Kaufholz, P.   +15 more
core   +2 more sources

Extraction and enrichment of minor lipid components of palm fatty acid distillate using supercritical carbon dioxide [PDF]

open access: yes, 2012
Currently the extraction of valuable components from oils is of growing interest. Palm fatty acid distillate is a by-product from palm oil refining process which contains valuable minor components.
Al-Darmaki, Naeema Ibrahim Karam
core   +7 more sources

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