Results 101 to 110 of about 25,055 (235)

Automatic Potentiometric Titrations

open access: yesTransactions of The Electrochemical Society, 1947
Potentiometric titration procedure is described briefly and the application of the potentiometric method to both analytical and general research work is discussed. Instrumentation for the potentiometric titration is reviewed with particular emphasis on automatic apparatus developments tending to simplify the use of the potentiometric method.
openaire   +1 more source

The Potentiometric Quantification of Chondroitin Sodium Sulfate Using Ion-Selective Electrodes

open access: yesЖурнал органічної та фармацевтичної хімії
Chondroitin sodium sulfate is an anionic polysaccharide widely used in pharmaceutical practice as an active ingredient of mono- and multicomponent medicinal products, and its quantitative determination is an essential stage of the quality control. It has
Andrii S. Koptielov   +5 more
doaj   +1 more source

The ingress of chlorides in concrete under compressive or tensile loads [PDF]

open access: yes, 2015
One common aggressive mechanism acting in reinforced concrete is chloride attack which induces steel corrosion. Although it has mostly been studied and analyzed separately it has been observed that loads acting on concrete may modify the deteriorating ...
De Belie, Nele   +2 more
core   +1 more source

Potentiometric Titration of Acid Soils From Peninsular Malaysia [PDF]

open access: yes, 1983
The study indicates the dominance of Al in controlling the acidity of acid Peninsular Malaysian soils. The buffering action of the soils is dominated by Al below pH 5.5 and by the clay minerals, mainly kaolinite, at pH above pH 5.5.
Jusop, Shamsuddin, Tessens, Eddy
core   +1 more source

Validation of analytical procedure of quantitative determination of 5,7-bis(meta-nitrophenylamino)-4,6-dinitrobenzofuroxan by potentiometric titration

open access: yesСтандартные образцы, 2017
A new method of quantitative determination of the substance of 5,7-bis(meta-nitrophenylamino)-4,6-dinitrobenzofuroxan using potentiometric titration method is developed. The method has high precision, reliability and sensitivity.
R. Sh. Markhabullina, L. M. Yusupova
doaj  

Titulação potenciométrica aplicada na determinação de ácidos graxos livres de óleos e gorduras comestíveis

open access: yesQuímica Nova, 2006
Free fatty acids are a measure of evaluating fats and oils, submitted to abusive conditions, besides being a quality characteristic of edible vegetable oils.
Osawa Cibele Cristina   +2 more
doaj  

Study of the reactivity of Kraft and organosolv lignins with 4, 4’–diphenylmethane diisocyanate and characterization of the obtained products [PDF]

open access: yes, 2011
The interaction of two types of lignins: Kraft lignin (KL), isolated according to the LignoBoost process (Sweden), and Alcell organosolv (OL) lignin (Canada), with 4,4’-diphenylmethane diisocyanate (MDI) in the dry dioxane media at 25 degrees of Celsius,
Arshanitsa, Alexandr   +3 more
core  

Potentiometric titration v1

open access: yes, 2018
Potentiometric titrationis can be used to determine the effective content of general chemical . The method offers many advantages, including simplicity, speed, easier end-point determination and more accurate results.
openaire   +1 more source

Preliminary Testing For Anionic, Cationic and Non-ionic [PDF]

open access: yes, 2007
Detergents present a major environmental problem due to large quantities of surfactants released from laundries. For this reason, it is important to apply an appropriate analytical method for their determination. In this work, we propose two simple, fast
Bokic, Lj., Pusic, T., Rezic, I.
core  

Acid-basic and complexation properties of a sedimentary humic acid. A study on the Barra Bonita reservoir of Tietê river, São Paulo State, Brazil

open access: yesJournal of the Brazilian Chemical Society, 2001
Acid-base and complexation properties of humic acid (HA) isolated from a river sediment were studied by potentiometric titration, adopting the discrete site distribution model and the modified Gran functions for data fitting.
Abate Gilberto, Masini Jorge C.
doaj  

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