Results 41 to 50 of about 514 (161)

Method for the separation of titanium, zirconium, iron, and aluminum from one another and for their subsequent determination

open access: yes, 1960
A method is described for the separation of titanium, zirconium, iron, and aluminum from one another and for their subsequent determination. Iron is first precipitated with 1-nitroso-2-naphthol after complexing the titanium and zirconium with citrate to ...
Murphy, Thomas; Clabaugh, W. Stanley; Gilchrist, Raleigh
core   +1 more source

Zeta-potential and flotation studies of chalcopyrite fines with cupferron

open access: yes, 1987
The flotation of fine particles of chalcopyrite with cupferron as a collector is studied by a Hallimond tube along with zea-potential measurments by microelectrophor-esis method.
Mangalam, V, Khangaonkar, P R
core   +1 more source

N-N bond cleavage in N-nitrosoarylamines

open access: yes, 2008
The rupture of N-N bonds in three specific N-nitrosoarylamines (N,N'-dimethyl-N,N-dinitroso-para-phenylenediamine, Cupferron, and N-nitrosodiphenylamine) upon electrochemical oxidation in acetonitrile solution is investigated.
Marija Petrovic   +11 more
core   +1 more source

A new sensitive electrochemical method for the determination of vanadium(IV) and vanadium(V) in Benfield sample

open access: yes, 2015
Vanadium(IV) and vanadium(V) can be determined by using differential pulse cathodic stripping voltammetry technique (DPCSV). Cupferron (ammonium N-nitrosophenylhydroxylamine) was used as ligand to form complex compounds with vanadium ions in Britton ...
Mohd. Yusoff, Abdull Rahim   +4 more
core   +1 more source

Determinação voltamétrica sequencial de urânio, cádmio e chumbo em fertilizantes fosfatados utilizando o eletrodo de filme de bismuto [PDF]

open access: yes, 2014
Dissertação (mestrado) - Universidade Federal de Santa Catarina, Centro de Ciências Físicas e Matemáticas, Programa de Pós-Graduação em Química, 2014.A agricultura do país atravessa uma fase onde todo o esforço para a verticalização da produção de ...
Martos, Lara Martholly Di
core  

Procedimiento analitico para la determinacion de Ti e Impurezas en ceramica piezoelectrica de BaTiO 3.

open access: yesRevista CENIC Ciencias Químicas, 2003
El control del contenido de Ti e impurezas en las ceramicas piezoelectricas es muy importante dado que influyen fuertemente en las propiedades electricas y electromecanicas de las mismas . Por ejemplo, si una ceramica piezoelectrica se somete a on fuerte
Aurelio Boza Carbonell   +2 more
doaj  

Studies on Analytical Methods for Trace Elements in Metals by Using Radioactive Isotope. II : Determination of Niobium and Tantalum in Steel [PDF]

open access: yes, 2010
application/pdfThe methods of determining and separating niobium and tantalum in steels were studied using the radioactive isotope niobium-95 and tantalum-182 as the tracer and radioactive indicator.
AMANO, Hiroshi
core   +1 more source

Simple, responsive and cost effective simultaneous quantification of Ga(III) and In(III) in environmental water samples [PDF]

open access: yes, 2019
The simultaneous determination of Ga(III) and In(III) in environmental water samples was described. The procedure was based on adsorptive stripping voltammetry using an in situ plated bismuth film electrode as a working electrode.
Adamczyk, M., Grabarczyk, M.
core   +1 more source

New solvothermal routes for GaN nanocrystals

open access: yes, 2004
GaN nanocrystals (see Figure) of hexagonal structure and varying diameters have been prepared by the reaction of hexamethyldisilazane (HMDS) with gallium cupferron or GaCl3 under solvothermal conditions.
Sardar, K., Rao, C. N. R.
core   +1 more source

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