Results 21 to 30 of about 397,224 (338)
Optimization of lutein-zeaxanthine separation on high performance liquid chromatography
Notulae Botanicae Horti Agrobotanici Cluj-Napoca, 1993 Separation of lutein and zeaxanthine which are carotenoidic isomeric pigments on High Performance Liquid Chromatography (HPLC) was investigated. Three different columns were used to separate standard mixtures: a normal phase silica column, a reversed ...
Crenguta TABACARU +2 more
doaj +1 more source
Determination of Benzo(α)pyrene in Infant Formula Using High Performance Liquid Chromatography and Dispersive Liquid–Liquid Microextraction [PDF]
Pharmaceutical Sciences, 2023 Background: Benzo(α)pyrene (BaP) is one of the most familiar polycyclic aromatic hydrocarbons (PAHs) to evaluate food safety and quality and can be present in infant formulas An analytical method for the extraction and quantification of BaP in infant ...
Akram Faridi, Mahboob Nemati
doaj +1 more source
A Statistical Approach to Estimating Adsorption-Isotherm Parameters in Gradient-Elution Preparative Liquid Chromatography [PDF]
arXiv, 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
Acoustic Resonance Effects and Cavitation in SAW Aerosol Generation [PDF]
, 2023 The interaction of surface acoustic waves (SAWs) with liquids enables the production of aerosols with adjustable droplet sizes in the micrometer range expelled from a very compact source. Understanding the nonlinear acousto-hydrodynamics of SAWs with a regulated micro-scale liquid film is essential for acousto-microfluidics platforms, particularly ...
arxiv +1 more source
Synthesis of endohedral iron-fullerenes by ion implantation [PDF]
, 2015 In this paper, we discuss the results of our study of the synthesis of endohedral iron-fullerenes. A low energy Fe+ ion beam was irradiated to C60 thin film by using a deceleration system. Fe+-irradiated C60 thin film was analyzed by high performance liquid chromatography and laser desorption/ionization time-of-flight mass spectrometry. We investigated
arxiv +1 more source
Czech Journal of Food Sciences, 2004 A new specific method using high-performance liquid chromatography-mass spectrometry (HPLC-MS) for the detection of stigmasterol hydroperoxides was developed.
S. Kemmo +3 more
doaj +1 more source
Kvasný průmysl, 2012 The traditional method of High Performance Liquid Chromatography (HPLC) was compared with the currently increasingly used Ultra- High Performance Liquid Chromatography (UHPLC) on a representative group of 11 hop samples.
Marie JURKOVÁ +2 more
doaj +1 more source
Super-resolution imaging reveals resistance to mass transfer in functionalized stationary phases [PDF]
arXiv, 2023 Chemical separations are costly in terms of energy, time, and money. Separation methods are optimized with inefficient trial-and-error approaches that lack insight into the molecular dynamics that lead to the success or failure of a separation and, hence, ways to improve the process.
arxiv
FEBS Letters, Volume 599, Issue 7, Page 952-970, April 2025.The mitochondrial outer membrane iron–sulphur ([Fe‐S]) protein mitoNEET is a target of the type‐2 diabetes drug pioglitazone. Its unknown molecular function is linked to respiratory complex activity and mitochondrial function. We discovered that O2 protects the mitoNEET [2Fe‐2S] cluster against NO oxidation and desensitization towards reduction by H2S.
Thao Nghi Hoang +9 more
wiley +1 more source
Chromatographic analysis of wheatgrass extracts
Journal of Pharmacy and Bioallied Sciences, 2015 Aim: Wheatgrass (WG) is the shoot of Triticum aestivum Linn. belongs to the family Gramineae, and possess high chlorophyll content and essential vitamins, minerals, vital enzymes, amino acids, dietary fibers etc., It has been shown to possess anti-cancer,
Masood Shah Khan +4 more
doaj +1 more source