New methods applicable for calibration of indicator electrodes

Michałowski, Tadeusz; Pilarski, Bogusław; Ponikvar‐Svet, Maja; Asuero, Agustín G.; Kukwa, Agata; Młodzianowski, Janusz

doi:10.1016/j.talanta.2010.11.067

Cited by 9 publications

(5 citation statements)

References 17 publications

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“…This article attempts to provide an introductory step for further studies about the determination of alkalinity The CAM presented here completes the list of modifications of the Gran methods presented in previously published articles [8]- [12], referring to different areas of titrimetric analysis.…”

Section: Final Commentsmentioning

confidence: 98%

A New Approach to Carbonate Alkalinity

Pilarski¹,

Michałowska-Kaczmarczyk²,

Asuero³

et al. 2014

JASMI

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The article provides experimental data applied to the determination of carbonate alkalinity (CAM) according to modified Gran II functions. CAM is related to the mixtures NaHCO3 + Na2CO3 and Na2CO3 + NaOH. In addition to the determination of equivalence volumes, one of the main novelties of the proposed method is the possibility of determining the activity coefficient of hydrogen ions (γ). Moreover, CAM can be used to calculate the dissociation constants (K1, K2) for carbonic acid and the ionic product of water (KW) from a single pH titration curve. The parameters of the related functions are calculated according to the least squares method.

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Section: Final Commentsmentioning

confidence: 98%

A New Approach to Carbonate Alkalinity

Pilarski¹,

Michałowska-Kaczmarczyk²,

Asuero³

et al. 2014

JASMI

Self Cite

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“…It refers both to batch and dynamic systems, whose speciation can be followed this way. Application of the simulating procedure (optimization a priori) enabled to apply some essential modifications and significant improvements of in the models applied for physicochemical and analytical needs Michałowski et al, 2008;Michałowski et al, 2011;Ponikvar et al, 2008). According to author's experience, the main difficulties in the right description of redox systems arise on the line of junction between thermodynamics and kinetics; this line is not precisely defined in many metastable systems.…”

Section: Application Of Gates and Matlab For Resolution Of Equilibriumentioning

confidence: 99%

Application of GATES and MATLAB for Resolution of Equilibrium, Metastable and Non-Equilibrium Electrolytic Systems

Michałowski¹

2011

Applications of MATLAB in Science and Engineering

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“…Potentiometry might be recommended as one of such methods, among a variety of others. In addition, the potentiometry offers several advantages, for instance it is non-destructive, may be easily automated and requires limited, if any, sample pre-treatment [1]. A group of selective potentiometric devices, namely ion selective electrodes, are widely employed in the environmental analyses.…”

Section: Introductionmentioning

confidence: 99%

Determination of potassium by the use of new calibration approach in potentiometric measurements

et al. 2020

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The implementation of a new calibration approach, termed the Signal Increment Standard Addition Method (SI-SAM), to the potentiometric determination of potassium in the synthetic samples and certified reference materials, is investigated. SI-SAM is a modification of SAM that is based on the change in the way in which the extrapolation is carried out. The calibration graph is extrapolated to the intersection with the signal of the first standard solution, not to the abscissa. Potentiometry is the method of choice due to its simplicity, rapid measurements, wide linear range and fulfilment of green analytical principles. However, careful attention is required to the calibration procedure because various versions of the standard addition method, which are commonly used in potentiometry, may create some problems leading to serious systematic analytical errors. The present work proves that SI-SAM allows for the elimination of this drawback and, consequently, for the determination of the considered analyte with improved results, especially in terms of accuracy and precision.

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New methods applicable for calibration of indicator electrodes

Cited by 9 publications

References 17 publications

A New Approach to Carbonate Alkalinity

A New Approach to Carbonate Alkalinity

Application of GATES and MATLAB for Resolution of Equilibrium, Metastable and Non-Equilibrium Electrolytic Systems

Determination of potassium by the use of new calibration approach in potentiometric measurements

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