Results 21 to 30 of about 3,023,039 (272)

Preparation and Characterization of Polyamidoxime Chelating Resin from Rubberwood Fibre-G-Polyacrylonitrile

Adsorption Science & Technology, 2009
Grafted rubberwood fibre was converted to polyamidoxime ion-exchange resin in order to remove heavy metal ions from aqueous solution. The cation-exchange resin existed predominantly in the syn -hydroxyamino form. The water uptake by the resin was ca.
Faraj A. Abuilaiwi, Muataz Ali Atieh, Mansor B. Ahmad, Nor Azowa Ibrahim, Mohamad Zaki Ab. Rahman, Wan Md. Zin Wan Yunus   +5 more
doaj   +1 more source

Selective Extraction of Cobalt and Copper from Chilean Mine Water by Ion Exchange Resin

Горные науки и технологии, 2020
Heavy metal-containing waste has become one of heavy environmental problems. Processing of such waste accumulated at waste dumps to extract valuable components is commercially beneficial activity and, in addition, decreases environmental impact.
J. Abeywickrama, N. Hoth, M. Ussath, C. Drebenstedt   +3 more
doaj   +1 more source

Ion-exchange-resin-catalyzed adamantylation of phenol derivatives with adamantanols: Developing a clean process for synthesis of 2-(1-adamantyl)-4-bromophenol, a key intermediate of adapalene

Beilstein Journal of Organic Chemistry, 2012
A clean process has been developed for the synthesis of 2-adamantylphenol derivatives through adamantylation of substituted phenols with adamantanols catalyzed by commercially available and recyclable ion-exchange sulfonic acid resin in acetic acid.
Nan Wang, Ronghua Wang, Xia Shi, Gang Zou   +3 more
doaj   +1 more source

The removal of toxic metals from liquid effluents by ion exchange resins. Part XVIII: Vanadium(V)/H+/Amberlite 958

Revista de Metalurgia, 2022
The ion exchange resin Amberlite 958 was used to investigate its behaviour on the removal of hazardous vanadium(V) from aqueous media. This investigation was carried out under various hydrodynamic conditions and chemical conditions, such as variation of
Francisco José Alguacil, Esther Escudero   +1 more
doaj   +1 more source

Biological Ion Exchanger Resins

Biophysical Journal, 1971
The cell is presented as a biological ion exchanger resin. The similarities between ion accumulating cells and ion exchanger resins are correlated. The kinetic characteristics of biological ion exchange are shown to be amenable to analysis by a model commonly used for ion exchanger resins.
openaire   +3 more sources

Evaluation of diffusive gradients in thin-films using a Diphonix® resin for monitoring dissolved uranium in natural waters [PDF]

, 2015
Commercially available Diphonix® resin (TrisKem International) was evaluated as a receiving phase for use with the diffusive gradients in thin-films (DGT) passive sampler for measuring uranium.
Burnett, Jonathan L., Amos, Sean, Turner, Geraldine S.C., Mills, Graham A., Fones, Gary R., Turner, Geraldine S. C.   +5 more
core   +1 more source

EXTRACTION METHODS AND POTASSIUM AVAILABILITY FOR SOYBEAN IN THE PARANA STATE’S SOILS, BRAZIL

Revista de Agricultura Neotropical, 2015
Evaluating the potassium (K) availability to the plants can be performed by different methods. In general, multielement methods are employed and they are used for K due to increase operational of soil testing laboratory. The efficacy of ammonium acetate,
Fábio Steiner, Maria do Carmo Lana, Tiago Zoz, Jucenei Fernando Frandoloso, Rubens Fey   +4 more
doaj   +1 more source

Optimasi Biaya dalam Proses Pemurnian Metanol untuk Mengurangi Resin sebagai Limbah Bahan Berbahaya dan Beracun di PT Kaltim Methanol Industri

Jurnal Rekayasa Proses, 2020
Purification process of raw methanol from its impurities to produce pure methanol at PT. Kaltim Methanol Industri (PT KMI) is carried out by several steps, including degassing, distillation, and adsorption.
Reno Imam Arthapersada, Muhammad Kurniawan Adiputra, Indra P Hakim, Imam Karfendi Putro, Asep P Zainuddin, Lisendra Marbelia, Ahmad Tawfiequrahman Yuliansyah   +6 more
doaj   +1 more source

Structural and biochemical analysis of a B12 superbinder

FEBS Letters, EarlyView.
BtuG proteins are vitamin B12 scavengers in Bacteroides thetaiotaomicron, a dominant human gut bacterium. We present crystal structures of three BtuG homologs bound to cobalamin and its precursor cobinamide, revealing picomolar binding affinities, among the highest known for any natural protein.
Jose M. Martinez Felices, Jacob J. Whittaker, Dirk J. Slotboom, Albert Guskov   +3 more
wiley   +1 more source

Structural studies and functional engineering of NanX: an anhydro‐sialic acid transporter from Escherichia coli

FEBS Open Bio, EarlyView.
Biophysical characterisation shows that NanX, a membrane transport protein from the major facilitator superfamily (MFS), forms both monomers and dimers after purification. AlphaFold modelling and substrate docking provide information on residues likely involved in substrate recognition for NanX and another MFS member, NanT.
Michael C. Newton‐Vesty, Kelsi R. Hall, Zachary D. Tillett, Liam S. Turk, James S. Davies, Michael J. Currie, Hamish G. Brown, Sepideh Valimehr, Peter D. Mace, Andrew E. Whitten, Santosh Panjikar, Eric Hanssen, Rachel A. North, Renwick C.J. Dobson   +13 more
wiley   +1 more source