Results 81 to 90 of about 5,392 (242)

Solving Chemical Equilibria in Titrimetry with the Inclusion of Ionic Strength Using OCTAVE and EXCEL

World Journal of Chemical Education, 2021
Juan José Baeza-Baeza, Olivia Pini, Francisco F. Pérez-Pla, María Celia García-Álvarez-Coque   +3 more
semanticscholar   +1 more source

Exchangeable aluminum evaluation in acid soils

Scientia Agricola, 2003
One of the main factors limiting agricultural production in tropical climate regions is mainly related to the presence of exchangeable aluminum (Al3+) in highly weathered acid soils.
Cassio Hamilton Abreu Jr., Takashi Muraoka, André Fernando Lavorante   +2 more
doaj  

Monitoring of Water Quality in the Hipparagi Irrigation Command Area, Karnataka, India [PDF]

, 2012
This paper discusses the quality of surface and groundwater quality in Hipparagi irrigation command area, Karnataka,India and compared to BIS standards.
Chandrashekar, J.S., Jagadeesh, K.C., Somashekar, R.K.   +2 more
core  

Titrimetric and Spectrophotometric Determination of Metaprolol tartrate in Pharmaceuticals Using N-Bromosuccinimide

E-Journal of Chemistry, 2007
One titrimetric and two spectrophotometric methods are presented for the assay of metaprolol tartrate (MPT) in bulk drug and in tablets. The methods employ N-bromosuccinimide (NBS) as the oxidimetric reagent and two dyes, methyl orange and indigo carmine
K. Basavaiah, B. C. Somashekar
doaj   +1 more source

INFLUENCE OF THE COBALT NITRATE:ETHYLENE GLYCOL MOLAR RATIO ON THE FORMATION OF CARBOXYLATE PRECURSORS AND COBALT OXIDES

Studia Universitatis Babes-Bolyai Chemia, 2017
This paper focuses on the obtaining of carboxylate precursors through the redox reaction of cobalt nitrate and ethylene glycol, in different stoechiometric ratios, as well as the decomposition of precursors into cobalt oxides.
Thomas DIPPONG, Firuța GOGA, Alexandra AVRAM   +2 more
doaj   +1 more source

Sensing with FETs - once, now and future [PDF]

, 2007
In this paper a short overview is given of the several FET-based sensor devices and the operational principle of the ISFET is summarized. Some of the shortcomings of the FET sensors were circumvented by an alternative operational mode, resulting in a ...
Berg, A. van den, Faber, E.J., Krommenhoek, E.E., Olthuis, W.   +3 more
core   +1 more source

Ultrasound assisted miniemulsion polymerization to prepare poly(urea-urethane) nanoparticles

Polímeros, 2018
Recently, the physical and chemical effects of ultrasound in polymeric materials synthesis have attracted great attention. This work presents the synthesis of novel polymeric materials by polymerization of isophorone diisocyanate with different polyols ...
André Eliezer Polloni, Alexsandra Valério, Débora de Oliveira, Pedro Henrique Hermes de Araújo, Claudia Sayer   +4 more
doaj   +1 more source

An Interference-Free Voltammetric Method for the Detection of Sulfur Dioxide in Wine Based on a Boron-Doped Diamond Electrode and Reaction Electrochemistry. [PDF]

Int J Mol Sci, 2023
Culková E, Lukáčová-Chomisteková Z, Bellová R, Rievaj M, Švancarová-Laštincová J, Tomčík P.   +5 more
europepmc   +1 more source

Groundwater quality in Handigundi State Forest Block of Ramanagaram Taluk, Karnataka, India [PDF]

, 2012
The paper focused on the groundwater quality in Handigundi Quarry area of Karnataka, India. Quarrying causes grave disturbances in to the water regime of the region. Water quality undergoes great change, as the hydrogeochem. processes are very slow and
Chandrashekar, J.S., Nandini, N., Sunitha, N.   +2 more
core  

Interaction Studies of Sodium N-Dodecyl Sulphate and Protons to Nistone H1 [PDF]

Iranian Journal of Chemistry & Chemical Engineering, 1989
The relationship between the binding of sodium n-dodecyl sulphate and protons to histone H1 has been investigated by equilibrium dialysis and titrimetry. The data cover the pH range 3.2-10 and surfactant concentrations up to 3.0×10-3 mol dm-3.
A.A. Moosavi Movahedi, M Godarzi
doaj