Results 21 to 30 of about 175 (72)

Superparamagnetic Ironoxide Nanoparticles via Ligand Exchange Reactions: Organic 1,2‐Diols as Versatile Building Blocks for Surface Engineering

Journal of Nanomaterials, Volume 2008, Issue 1, 2008., 2008
A method for the preparation of ligand‐covered superparamagnetic iron oxide nanoparticles via exchange reactions is described. 1,2‐diol‐ligands are used to provide a stable binding of the terminally modified organic ligands onto the surface of γ‐Fe2O3‐nanoparticles (r ~ 4 nm).
Wolfgang H. Binder, Harald Weinstabl, Robert Sachsenhofer, S. Liao   +3 more
wiley   +1 more source

LabVIEW‐based sequential‐injection analysis system for the determination of trace metals by square‐wave anodic and adsorptive stripping voltammetry on mercury‐film electrodes

Journal of Analytical Methods in Chemistry, Volume 25, Issue 6, Page 133-140, 2003., 2003
The development of a dedicated automated sequential‐injection analysis apparatus for anodic stripping voltammetry (ASV) and adsorptive stripping voltammetry (AdSV) is reported. The instrument comprised a peristaltic pump, a multiposition selector valve and a home‐made potentiostat and used a mercury‐film electrode as the working electrodes in a thin ...
Anastasios Economou, Anastasios Voulgaropoulos   +1 more
wiley   +1 more source

Purificación y propiedades de la NAD aldehído deshidrogenasa de levadura de panadería (Saccharomyces cerevisiae) [PDF]

, 1964
Purificación de la enzima. Obtención del polvo cetónico de levadura: de acuerdo a latécnica modificada por Stoppani y Milstein (8). Se utiliza levedurade panadería (Sacharomyces Cerevisiae) producto comercial,prensado y libre de fécula.
Schwarcz, Martha Norma
core   +1 more source

Application of a Lead Film-Modified CNT/SGC Electrode in the Voltammetric Analysis of Trace Concentrations of Mo(VI)

Sensors
An adsorptive stripping voltammetric method for the determination of ultra trace amounts of Mo(VI) using an electrode based on a mixture of carbon nanotubes and spherical glassy carbon (CNT/SGC) was developed.
Malgorzata Grabarczyk, Wieslawa Cwikla-Bundyra, Oliwia Siewierska   +2 more
doaj   +1 more source

One‐Pot Synthesis of Carbon‐Supported Pd Nanoparticles with Ni and Carbon Matrix Protection for Durable Alkaline Hydrogen Oxidation Reaction

ChemCatChem, Volume 16, Issue 15, August 12, 2024.
The class of electrocatalyst with protected metal active sites (e. g. the present carbon‐capped and carbon‐supported nanoparticles) is not new in the literature and is being applied in many domains of electrochemistry, due to the peculiar properties of such materials, like high tolerance towards passivation, hydridation or degradation (e. g.
Huong Doan, Ricardo Sgarbi, Quentin Labarde, Vincent Martin, Marian Chatenet   +4 more
wiley   +1 more source

Determination of cadmium by flame-atomic absorption spectrometry after preconcentration on silica gel modified with cupferron

Journal of the Brazilian Chemical Society, 2004
A method for the determination of cadmium by flame atomic absorption spectrometry (FAAS) after its preconcentration onto a column containing silica gel modified with cupferron was developed.
Bortoleto Gisele G., Macarovscha Greice T., Cadore Solange   +2 more
doaj  

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

Revista 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, Juan Jimenez Chacon, Isel Cartes Nodarse   +2 more
doaj  

Dosificación fotométrica de aluminio en aguas con el reactivo Cupferrón

, 1941
Fil:Pereyra, Caupolicán Jorge. Universidad de Buenos Aires.
Pereyra, Caupolicán Jorge
core  

Desarrollo y optimización de un método voltamperométrico adsortivo para la determinación de vanadio, molibdeno y tungsteno en aguas

, 2013
Tesis (licenciatura en química)--Universidad de Costa Rica, 2013.Se desarrolló y optimizó un método para determinar simultáneamente vanadio, molibdeno y tungsteno en muestras de agua desionizada enriquecida, y muestras comerciales de agua potable, por ...
Murillo Alfaro, Katia
core  

Adsorptive Stripping Voltammetry for Determination of Vanadium: A Review. [PDF]

Materials (Basel), 2023
Wlazłowska E, Grabarczyk M.
europepmc   +1 more source