Results 11 to 20 of about 625,745 (242)

Sensitive method of determination of gold (III) using diacetyl monoxime isonicotinoyl hydrazone (DMIH)

open access: yesOrbital: The Electronic Journal of Chemistry, 2011
Gold (III) forms a yellow coloured water soluble complex with diacetyl monoxime isonicotinoyl hydrazone (DMIH) reagent in acidic buffer pH 4.5 with ?max at 361 nm. The molar absorptivity and Sandell’s sensitivity are 1.50X10 4 L .mol -1.cm-1 and
Gadikota Chandrasekhar Reddy   +2 more
doaj   +1 more source

Comparative study of binding strengths of heavy metals with humic acid [PDF]

open access: yesHemijska Industrija, 2013
The complexation of humic acid with certain heavy metal ions (Co(II), Ni(II), Cu(II), Zn(II) and Pb(II)) was investigated. The stability constants of humate complexes were determined by method which is based on distribution of metal ions between
Kostić Ivana S.   +5 more
doaj   +1 more source

Efficient Recovery of Noble Metal Ions (Pd2+, Ag+, Pt2+, and Au3+) from Aqueous Solutions Using N,N'-Bis(salicylidene)ethylenediamine (Salen) as an Extractant (Classic Solvent Extraction) and Carrier (Polymer Membranes)

open access: yesMembranes, 2021
This paper presents the results of the first application of N,N'-bis(salicylidene)ethylenediamine (salen) as an extractant in classical liquid–liquid extraction and as a carrier in membrane processes designed for the recovery of noble metal ions (Pd2 ...
Katarzyna Witt   +3 more
doaj   +1 more source

Pd(II) Binding Strength of a Novel Ambidentate Dipeptide-Hydroxypyridinonate Ligand: A Solution Equilibrium Study

open access: yesMolecules, 2022
A novel ambidentate dipeptide conjugate (H(L1)) containing N-donor atoms of the peptide part and an (O,O) chelate at the hydroxypyridinone (HP) ring is synthesized and characterized.
Linda Bíró   +3 more
doaj   +1 more source

Stability of Adhesion Clusters under Constant Force [PDF]

open access: yesPhysical Review Letters, 2004
Revtex, 4 pages, 4 Postscript files ...
Erdmann, T., Schwarz, U.
openaire   +4 more sources

Study on Coordination Chemistry of U(Ⅵ) with N,N-dimethyl-6-amide-pyridine-2-carboxylic Acid

open access: yesYuanzineng kexue jishu, 2023
The very strong complexing capacity of pyridine-2,6-dicarboxylic acid (DPA) with lanthanides/actinides of different oxidation states in aqueous solutions makes it a selective complexing agent or stripping agent in various separation systems. Besides DPA,
XU Chao;YANG Qi;YANG Yating;LIU Qian;TIAN Guoxin;YANG Suliang
doaj  

Equilibria in Aqueous Cobalt(II)—Reduced Schiff Base N-(2-hydroxybenzyl)alanine System: Chemical Characterization, Kinetic Analysis, Antimicrobial and Cytotoxic Properties

open access: yesMolecules, 2020
The present study describes the coordination properties of a reduced Schiff base, N-(2-hydroxybenzyl)alanine, towards cobalt(II) using potentiometric as well as spectroscopic (UV-Vis and ESI-MS) methods.
Magdalena Woźniczka   +9 more
doaj   +1 more source

Determination of the side-reaction coefficient of desferrioxamine B in trace-metal-free seawater

open access: yesFrontiers in Marine Science, 2016
Electrochemical techniques like adsorptive cathodic stripping voltammetry with competitive ligand equilibration (ACSV-CLE) can determine total concentrations of marine organic ligands and their conditional binding constants for specific metals, but ...
Johan Schijf   +2 more
doaj   +1 more source

Extraction of calcium from water into nitrobenzene using strontium dicarbollylcobaltate in the presence of 18-crown-6 [PDF]

open access: yesJournal of the Serbian Chemical Society, 2000
From extraction experiments and g-activity measurements, the extraction constant corresponding to the equilibrium Ca 2+ (aq)+ SrL 2+ (nb) === CaL 2+ (nb) + Sr 2+ (aq) taking place in the two-phase water-nitrobenzene system(L= 18-crown-6, aq ...
Danková Marcela   +2 more
doaj   +3 more sources

stability constant [PDF]

open access: yes, 2014
Citation: 'stability constant' in the IUPAC Compendium of Chemical Terminology, 3rd ed.; International Union of Pure and Applied Chemistry; 2006. Online version 3.0.1, 2019. 10.1351/goldbook.ST06785 • License: The IUPAC Gold Book is licensed under Creative Commons Attribution-ShareAlike CC BY-SA 4.0 International for individual terms.
openaire   +1 more source

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