Results 11 to 20 of about 175 (72)

Comparación de metodologías voltamperométricas adsortivas para la determinación de aluminio en agua potable [PDF]

Tecnología en Marcha, 2005
La determinación cuantitativa de aluminio en diversas técnicas a nivel de μg/L está sujeta a contaminación e interferencias. El aluminio por técnicas voltamperómétricas directas es difícil de reducir debido a su alto potencial. Para superar este problema,
Miriam Barquero Quirós
doaj   +9 more sources

Adsorptive Stripping Voltammetry for Determination of Cadmium in the presence of Cupferron on a Nafion-coated Bismuth Film Electrode

International Journal of Electrochemical Science, 2012
The method for reliable determination of Cd(II) by square wave adsorptive cathodic stripping voltammetry was done. The technique involves an interfacial adsorption of Cd(II) as Cd-cupferron complex on a Nafion-coated bismuth film electrode and subsequent
Nipaporn Meepun, Suphawuth Siriket, Saravut Dejmanee   +2 more
doaj   +1 more source

SPECTROSCOPIC AND ELECTRICAL CONDUCTIVITY STUDIES OF SOME SEMICARBAZIDE HYDROCHLORIDE COMPLEXES

Zagazig Journal of Pharmaceutical Sciences, 1996
The infrared and electronic absorption spectra of semicarbazide hydrochloride and its complexes with anthracene, tetracyanoquinodimethane TCNQ, Na fluorescein and cupferron was recorded in the regions 200-4000 cm and 200 -400 nm.
Mamdouh Fadly , Magda Dawy
doaj   +1 more source

Nanomaterials Developed by Processing Iron Coordination Compounds for Biomedical Application

Journal of Nanomaterials, Volume 2019, Issue 1, 2019., 2019
The iron oxides, widespread in nature, are used in numerous applications in practice due to their well‐known properties. These properties can be modified by size lowering at nanoscale. Some applications, such as biomedical, require a rigorous selection of nanoparticles by size, shape, and surface functionality.
Mihail Iacob, Carmen Racles, Mihaela Dascalu, Codrin Tugui, Vasile Lozan, Maria Cazacu, Jean M. Greneche   +6 more
wiley   +1 more source

Adsorptive stripping voltammetric determination of trace amounts of lead in environmental water samples with complicated matrix

E3S Web of Conferences, 2013
A sensitive, simple and fast adsorptive stripping voltammetric procedure for trace determination of lead in environmental water samples has been developed.
Grabarczyk M., Koper A.
doaj   +1 more source

Spectroscopic determination of manganese ion [PDF]

E3S Web of Conferences
A sorption-spectrophotometric method for the determination of manganese (II) ions in industrial wastewater has been developed. A corresponding immobilisation procedure is presented.
Smanova Zulayho, Yaxshiyeva Zuxra, Kuchkarbayevna Nazira, Miradxamova Gulyorxon, Fatxullayeva Muyassar   +4 more
doaj   +1 more source

[Retracted] Nitroxyl (HNO): A Reduced Form of Nitric Oxide with Distinct Chemical, Pharmacological, and Therapeutic Properties

Oxidative Medicine and Cellular Longevity, Volume 2016, Issue 1, 2016., 2016
Nitroxyl (HNO), the one‐electron reduced form of nitric oxide (NO), shows a distinct chemical and biological profile from that of NO. HNO is currently being viewed as a vasodilator and positive inotropic agent that can be used as a potential treatment for heart failure.
Mai E. Shoman, Omar M. Aly, Lezanne Ooi
wiley   +1 more source

The Effect of Solvents, Acetone, Water, and Ethanol, on the Morphological and Optical Properties of ZnO Nanoparticles Prepared by Microwave

Journal of Nanotechnology, Volume 2012, Issue 1, 2012., 2012
HDA‐capped ZnO nanoparticles were prepared by solvothermal method using solvents of different polarities. A number of parameters were kept constant such as temperature, pressure, time, and pH while solvents were varied, that is, water, ethanol, and acetone. The TEM was used for the structural properties and morphologies such as spheres, mixture of rods,
Phindile B. Khoza, Makwena J. Moloto, Lucky M. Sikhwivhilu, Chuan Jian Zhong   +3 more
wiley   +1 more source

Speciation of Chromium in Soil and Sludge in the Surrounding Tannery Region, Ranipet, Tamil Nadu

International Scholarly Research Notices, Volume 2011, Issue 1, 2011., 2011
The distribution and mobility of chromium in the soils and sludge surrounding a tannery waste dumping area was investigated to evaluate its vertical and lateral movement of operational speciation which was determined in six steps to fractionate the material in the soil and sludge into (i) water soluble, (ii) exchangeable, (iii) carbonate bound, (iv ...
Badal Kumar Mandal, Raviraj Vankayala, L. Uday Kumar, S. K. Brar, S. M. Waliszewski   +4 more
wiley   +1 more source

Determinación de pequeñas cantidades de aluminio y hierro en titanio [PDF]

, 1956
Se propone un método para determinar pequeñas cantidades de aluminio y hierro en presencia de titanio que consideramos cómodo, rápido y mucho mas exacto que los comunmente usados (precipitación del hierro con sulfuro previa reducción; del titanio con ...
Bertin, Marcos Ernesto José
core   +1 more source