scholarly journals A Study for the Evaluation of Quantitative Reaction Conditions Between As(V) and Ti(III) for the DP Polarographic Determination of Electroinactive As(V) and Application

2017 ◽  
Vol 12 (5) ◽  
pp. 469-480 ◽  
Author(s):  
Güler Somer ◽  
Olcay Şendil ◽  
Güler Ekmekci ◽  
Tuba Sarıgül
Keyword(s):  
Polarographic Determination ◽  
Reaction Conditions

DC polarographic determination of surfactants

1987 ◽  
Vol 52 (3) ◽  
pp. 609-615
Author(s):  
A. Díaz ◽  
S. González ◽  
A. Arévalo
Keyword(s):  
Quantitative Determination ◽  
Polarographic Determination ◽  
Method Of Determination

The minimum on the polarographic curves for Bi(III) reduction in HCl solutions occurring when small amounts of surfactants are present can be used for their quantitative determination. The form of the polarograms was examined with respect to the concentration of the surfactant, and the range of concentrations in which the method of determination can be used is discussed.

Polarographic Determination of Acetone

1959 ◽  
Vol 31 (7) ◽  
pp. 1217-1219 ◽  
Author(s):  
R. E. Van Atta ◽  
D. R. Jamieson
Keyword(s):  
Polarographic Determination

scholarly journals Software-guided microscale flow calorimeter for efficient acquisition of thermokinetic data

2021 ◽  
Author(s):  
Timothy Aljoscha Frede ◽  
Marlene Dietz ◽  
Norbert Kockmann
Keyword(s):  
Design Of Experiments ◽  
Process Development ◽  
Reaction Conditions ◽  
Experimental Conditions ◽  
Flow Calorimeter ◽  
Microscale Flow ◽  
Increased Sensitivity ◽  
Important Time ◽  
Optimal Reaction

AbstractFast chemical process development is inevitably linked to an optimized determination of thermokinetic data of chemical reactions. A miniaturized flow calorimeter enables increased sensitivity when examining small amounts of reactants in a short time compared to traditional batch equipment. Therefore, a methodology to determine optimal reaction conditions for calorimetric measurement experiments was developed and is presented in this contribution. Within the methodology, short-cut calculations are supplemented by computational fluid dynamics (CFD) simulations for a better representation of the hydrodynamics within the microreactor. This approach leads to the effective design of experiments. Unfavourable experimental conditions for kinetics experiments are determined in advance and therefore, need not to be considered during design of experiments. The methodology is tested for an instantaneous acid-base reaction. Good agreement of simulations was obtained with experimental data. Thus, the prediction of the hydrodynamics is enabled and the first steps towards a digital twin of the calorimeter are performed. The flow rates proposed by the methodology are tested for the determination of reaction enthalpy and showed that reasonable experimental settings resulted. Graphical abstract A methodology is suggested to evaluate optimal reaction conditions for efficientacquisition of kinetic data. The experimental design space is limited by thestepwise determination of important time scales based on specified input data.

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