Results 41 to 50 of about 1,390,801 (312)

A Statistical Approach to Estimating Adsorption-Isotherm Parameters in Gradient-Elution Preparative Liquid Chromatography [PDF]

open access: yesarXiv, 2022
Determining the adsorption isotherms is an issue of significant importance in preparative chromatography. A modern technique for estimating adsorption isotherms is to solve an inverse problem so that the simulated batch separation coincides with actual experimental results.
arxiv  

Medium- and High-Pressure Integrated Chromatographic Strategies for the Isolation and Purification of Free Radical Inhibitors from Dracocephalum heterophyllum

open access: yesSeparations, 2022
Dracocephalum heterophyllum has been reported as a traditional Tibetan medicine with diverse therapeutic benefits for the effective treatment of various diseases.
Yue Lv, Ze Wang, Qilan Wang, Jun Dang
doaj   +1 more source

Superheated liquids for the extraction of solid residues from winemaking processes [PDF]

open access: yes, 2003
Solid residues from winemaking process have been subjected to extraction with superheated water-ethanol mixtures. Identification and characterisation of the extracted compounds have been made by spectrophotometry, gas chromatography with either flame ...
Gonzalez-Rodriguez, Jose   +2 more
core   +1 more source

Enhancing Sustainable Analytical Chemistry in Liquid Chromatography: Guideline for Transferring Classical High-Performance Liquid Chromatography and Ultra-High-Pressure Liquid Chromatography Methods into Greener, Bluer, and Whiter Methods

open access: yesMolecules
This review is dedicated to sustainable practices in liquid chromatography. HPLC and UHPLC methods contribute significantly to routine analytical techniques.
Sami El Deeb
doaj   +1 more source

Inhibitory compound produced by Pseudomonas with effectiveness on Vibrio harveyi [PDF]

open access: yes, 2010
Persistence of the antivibrio property of the potential antagonistic probiotics, Pseudomonas MCCB 102 and 103, at di¡erent temperatures, pH and in organic solvents was studied.
Bright Singh, I S   +6 more
core   +1 more source

Gonadotropin releasing hormone in first trimester human placenta: isolation, partial characterisation and in vitro biosynthesis [PDF]

open access: yes, 1986
Using a specific radioimmunoassay for gonadotropin releasing hormone, the presence of gonadotropin releasing hormone like material in the first trimester human placenta has been demonstrated.
Jagannadha Rao, A., Mathialagan, N.
core   +1 more source

Surfaceome: a new era in the discovery of immune evasion mechanisms of circulating tumor cells

open access: yesMolecular Oncology, EarlyView.
In the era of immunotherapies, many patients either do not respond or eventually develop resistance. We propose to pave the way for proteomic analysis of surface‐expressed proteins called surfaceome, of circulating tumor cells. This approach seeks to identify immune evasion mechanisms and discover potential therapeutic targets. Circulating tumor cells (
Doryan Masmoudi   +3 more
wiley   +1 more source

Incidence of Neonatal Hyperphenylalaninemia Based on High-performance Liquid Chromatography Confirmatory Technique in Mazandaran Province, Northern Iran (2007–2015)

open access: yesInternational Journal of Preventive Medicine, 2017
Background: Classic phenylketonuria (PKU) is a metabolic disorder. The purpose of this study was to assess epidemiological factors of PKU phenotypes in a neonatal screening program for Mazandaran, Iran.
Ali Abbaskhanian   +6 more
doaj   +1 more source

Oral Substitution of Melatonin in Critical Care: A Pharmacokinetic Study in Patients with Intracranial Hemorrhage

open access: yesJournal of Pharmaceutical Care, 2020
Background: Intracranial hemorrhage (ICH) is a devastating condition with a high mortality and morbidity rate. Neuroprotective agents protect surrounding brain tissue from the toxic effects of hematoma and can result in better outcomes. There is evidence
Mohammadreza Rouini   +8 more
doaj   +1 more source

The influence of endogenous hormones on the formation of buds from stems of bitter melon (Momordıca charantıa L.) [PDF]

open access: yes, 2013
Stems of bitter melon (Momordica charantia L.) cv. Dabai were used to establish in vitro cultures. The endogenous hormone concentrations (indoleacetic acid [IAA], abscisic acid [ABA], gibberellins 3 [GA3], zeatin [ZT]) of the calluses were determined by ...
Li, HX   +5 more
core   +2 more sources

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