Results 11 to 20 of about 928,633 (291)

PREPARATIVE SEPARATION OF ISOQUINOLINE ALKALOIDS FROM PHELLODENDRI CORTEX BY PH-ZONE-REFINING COUNTER-CURRENT CHROMATOGRAPHY

open access: yesQuímica Nova, 2018
pH-Zone-refining counter-current chromatography (PZRCCC) was successfully used for preparative separation isoquinoline alkaloids from Phellodendri Cortex.
Daijie Wang   +7 more
doaj   +3 more sources

Review of centrifugal liquid-liquid chromatography using aqueous two-phase solvent (ATPS) systems: Its scale-up and prospects for the future production of high-value biologics [PDF]

open access: yes, 2007
The future challenges in bioprocessing include developing new downstream processes for the purification and manufacture of the protein based medicines of the future to relieve the predicted bottleneck being produced by increasingly high titres from ...
Sutherland, I A
core   +6 more sources

Separation of Molar Weight-Distributed Polyethylene Glycols by Reversed-Phase Chromatography—II. Preparative Isolation of Pure Single Homologs [PDF]

open access: yes, 2023
The isolation of single homologs of polyethylene glycol by preparative reversed-phase chromatography is investigated. A thermodynamic model developed accurately previously describes the retention times of individual homologs as function of their size ...
Bornschein, Benedikt   +7 more
core   +1 more source

Complete separation of the quaternary mixture of nadolol stereoisomers using preparative and simulated moving bed chromatography [PDF]

open access: yes, 2021
The separation and purification of high added value products by liquid chromatography is a very popular technique. The development of more stable and efficient stationary phases, together with the design of innovative and more flexible separation ...
Pais, Luís S.   +3 more
core   +1 more source

Fixed-bed and simulated moving bed chromatography using achiral and chiral adsorbents for the complete preparative separation of a quaternary mixture [PDF]

open access: yes, 2022
Nadolol is a nonselective beta-adrenergic receptor antagonist (beta-blocker) pharmaceutical drug, widely used in the treatment of cardiovascular diseases, such as hypertension, ischemic heart disease (angina pectoris), congestive heart failure and ...
Pais, Luís S.   +3 more
core   +1 more source

Absolute Configuration of Bromofluoroiodomethane after Preparative Gas Chromatographic Separation [PDF]

open access: yes, 2021
The enantiomers of bromofluoroiodomethane (CHBrFI) were separated on a preparative scale using gas chromatography (GC). The collected single enantiomers were analysed by vibrational circular dichroism spectroscopy and polarimetry in combination with ab ...
Benjamin, Spenger   +3 more
core   +1 more source

ISOLASI LISOZIM ALBUMIN TELUR AYAM RAS DENGAN METODE KROMATOGRAFI PENUKAR ION

open access: yesJurnal Teknologi dan Industri Pangan, 2018
Lysozyme is one of the proteins found in hen egg albumin. Besides known as antimicrobial agents, lysozyme hydrolysis products can also function as antioxidants and as angiotensin converting enzyme (ACE) inhibitors.
Zakiah Wulandari   +4 more
doaj   +1 more source

Evaluation of Inter-Apparatus Separation Method Transferability in Countercurrent Chromatography and Centrifugal Partition Chromatography

open access: yesSeparations, 2019
In the countercurrent chromatography and centrifugal partition chromatography, separation method transfer and scale-up is often described as an easy and straightforward procedure.
Simon Roehrer, Mirjana Minceva
doaj   +1 more source

The electrophoretic membrane contactor: A mass-transfer-based methodology applied to the separation of whey proteins [PDF]

open access: yes, 2011
In the electrophoretic membrane contactor (EMC), a porous membrane is used to establish a contact across two flowing liquids between which an electrically driven mass transfer takes places.
Roux-de Balmann, Hélène   +3 more
core   +1 more source

Optimization of Automatic Synthesis and Separation of [18F] AV-45 and Quality Control

open access: yesFrontiers in Chemistry, 2022
Objective: Based on the Tracerlab FXF-N platform, a synthesis program and preparative high-performance liquid chromatography (HPLC) purification program edited by us can stably and repeatedly produce [18F] AV-45 without changing the process. The [18F] AV-
Qi-Zhou Zhang   +5 more
doaj   +1 more source

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