Relevant bibliographies by topics / Potentiometric evidences

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Academic literature on the topic 'Potentiometric evidences'

Author: Grafiati
Published: 5 June 2025
Last updated: 1 August 2025

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Journal articles on the topic "Potentiometric evidences"

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S., S. Yadav, and S. Saxena R. "Formation constants and thermodynamic parameters of some tri-ligand complexes of lanthanides." Journal of Indian Chemical Society Vol. 86, Feb 2009 (2009): 168–70. https://doi.org/10.5281/zenodo.5807540.

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Department of Chemistry, Government Raza P.G College, Rampur-244 901, Uttar Pradesh, India <em>Manuscript received 30 June 2008, revised 15 October 2008, accepted 23 October 2008</em> Potentiometric evidences have been cited for the formation of 1 : 1 : 1 : 1; MLL&#39;L<em>&quot;</em> quaternary complexs [M<sup>III</sup>&nbsp;= La<sup>III</sup>, Pr<sup>III</sup>&nbsp;and Nd<sup>III</sup>, L = ethyleneglycol-bis(p-aminoethylether)-<em>N,N,N&#39; ,N&#39;</em>-tetraacetic acid (EGTA), L&#39; = pyrldine-2,6-dicarboxylic acid (PDA) and L&quot;&nbsp;= 2,2<em>&#39;</em>-dithiodisalicylic acid (DTSA)
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Závada, Jiří, Václav Pechanec, Jaroslav Zajíček, Ivan Stibor, and Antonín Vítek. "Effects of salt concentration and counterion on stability of alkali ion-18-crown-6 complexes in aqueous and methanolic solution: A conflicting evidence from potentiometric and sodium-23 NMR studies." Collection of Czechoslovak Chemical Communications 50, no. 5 (1985): 1184–93. http://dx.doi.org/10.1135/cccc19851184.

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Contrary to expectation, the title effects observed concurrently by potentiometry with ion-selective electrode and by sodium-23 NMR spectroscopy are completely different. The potentiometric stability constants for the sodium ion-18-crown-6 complex (KISE) exhibit a very pronounced variation with the counterion, KISENaSCN &gt; KISENaCl &gt; KISENaOH, as well as with the sodium salt concentration, the KISENaSCN/KISENaOH ratio being about 1.5, 2.0, 5.0 and 20 in the 0.01, 0.1, 0.5 and 1.0 mol l-1 aqueous and about 2.0, 12, 600 and 2 500 in the 0.01, 0.1, 0.5 and 1.0 mol l-1 methanolic solution, re
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García, Begoña, Inmaculada Domingo, Pedro L. Domingo, and José M. Leal. "Determination of limiting molar conductivities of weak organic acids in aqueous solutions." Collection of Czechoslovak Chemical Communications 56, no. 6 (1991): 1184–92. http://dx.doi.org/10.1135/cccc19911184.

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Conductance, potentiometric, and spectrophotometric measurements have been made at 25°C of aqueous solution containing sulfanilic, hippuric, mandelic, and 3,5-dinitrosalicylic acids at different concentrations. Conductance data were analyzed using the methods of Fuoss-Kraus, Kraus-Parker, and Shedlovsky for conductivity of the free ions. Using the calculated limiting conductances, activity coefficients, and degrees of dissociation, the dissociation constants of the weak acids were determined. From plots Δ vs c1/2, reliable values for Δ0 were estimated, using a computer program, and by means of
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Powell, HKJ, and RM Town. "Aluminum(III)-Malonate Equilibria: a Potentiometric Study." Australian Journal of Chemistry 46, no. 5 (1993): 721. http://dx.doi.org/10.1071/ch9930721.

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The aluminium(III)-malonic acid (H2L) equilibria have been studied by potentiometric titration in aqueous solution at 25°C (I = 0.10 M KCl ). Data were consistent with the formation of simple binary complexes AlL + (log K1 = 6.711), AlL2- (log K2 = 4.815) and AlL33- (logβ3 = 14.104) in the pH range 2.2-5.5. There was also evidence for a minor species AlL2(OH)2- at pH &gt; 5.8 for solutions with [Al3+]:[LH2] &lt; 3.0 (log KD= -6.68). The protonation constants determined for malonic acid were log K1 = 5.43 and log K2 = 2.60 (corrected for K+ ion pairing).
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Baulin, V. E., G. S. Tsebrikova, D. V. Baulin, and Y. F. Al Ansary. "1,5-bis[2-(dioxyphosphoryl)-4-ethylphenoxy]-3-oxapentane and its Analogs as Promising Organic Ligands for Copper(II) Binding s." Biomedical Chemistry: Research and Methods 1, no. 3 (2018): e00043. http://dx.doi.org/10.18097/bmcrm00043.

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The dissociation and complexation ability toward Cu(II) of acidic type phosphoryl-containing podands – tetrabasic 1,5-bis[2-(dioxyphosphoryl)-4-ethylphenoxy]-3-oxapentane (L1), dibasic – 1,5-bis[2-(ethoxyhydroxyphosphoryl)-4-ethylphenoxy]-pentane (L2) and also of their carboxylic analogue dibasic 1,5-bis[2-(oxycarbonylphenoxy)]-3-oxapentane (L3) were investigated by spectrophotometric, conductometric and potentiometric methods in water in the presence 5% of dimethyl formamide. Spectrophotometric and conductometric titration data provided evidence for formation of 1:1 (M:L) complexes. The disso
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Prasad, S., V. D. Leite, R. A. C. Santana, and E. A. Medeiros. "Electrometric studies on formation of cerium vanadates as a function of pH." Eclética Química 31, no. 2 (2006): 31–38. http://dx.doi.org/10.1590/s0100-46702006000200005.

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The precise nature of the reaction between nitric acid and sodium ortho-vanadate solutions has been studied by means of electrometric techniques involving potentiometric and conductometric titrations. The well defined inflections and breaks in the titration curves confirm the existence of the anions, pyro-V2O7(4-), meta-VO3- and poly-H2V10O28(4-) corresponding to the ratios of VO4(3-):H+ as 1:1, 1:2 and 1:2.6 in the neighborhood of pH 10.5, 7.4 and 3.6, respectively. The interaction of cerium(III) nitrate with sodium vanadate solutions, at specific pH levels 12.4, 10.5, 7.4 and 3.6 was also st
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Allard, Thierry, Marie Ponthieu, Tiphaine Weber, Naziano Filizola, Jean-Loup Guyot, and Marc Benedetti. "Nature and properties of suspended solids in the Amazon Basin." Bulletin de la Société Géologique de France 173, no. 1 (2002): 67–75. http://dx.doi.org/10.2113/173.1.67.

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Abstract Suspended solids from several rivers of the Amazon Basin (Brazil) have been studied in both the particulate (&amp;gt; 0,2 μm) and colloidal (0.2 μm-5kD) fractions through a combination of tools including Fourier transform infrared spectroscopy (FT-IR), electron paramagnetic resonance (EPR) and potentiometric measurements. Particulate and colloidal matter are organo-mineral and organic, respectively. Signatures of the particulate fractions distinguish Rio Amazonas/Rio Solimoes rivers and the northern basin rivers (Rio Negro, Rio Branco, Rio Trombetas). In the latter, kaolinites are the
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Prasad, Saradh, Valderi Duarte Leite, Renato Alexandre Costa Santana, and Emanuelle Araújo De Medeiros. "Electrometric studies on formation of cerium vanadates as a function of pH." Ecletica Quimica 31, no. 2 (2006): 31–38. http://dx.doi.org/10.26850/1678-4618eqj.v31.2.2006.p31-38.

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The precise nature of the reaction between nitric acid and sodium ortho-vanadate solutionshas been studied by means of electrometric techniques involving potentiometric and conductometrictitrations. The well defined inflections and breaks in the titration curves confirm the existence of theanions, pyro-V 2 O 74- , meta-VO 3- and poly-H 2 V 10 O 284- corresponding to the ratios of VO 43- :H + as 1:1,1:2 and 1:2.6 in the neighborhood of pH 10.5, 7.4 and 3.6, respectively. The interaction of cerium(III)nitrate with sodium vanadate solutions, at specific pH levels 12.4, 10.5, 7.4 and 3.6 was also
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Matter, Hamdy, Tariq M. Ayad, and Abdulrhman A.I. Alkatly. "The Corrosion Inhibition of The Carbon Steel and Oil Pipelines in 1M HCl by Expired Lactulax and Triazepine Carboxylate Drugs." مجلة العلوم الاساسية و التطبيقية, no. 18 (July 23, 2024): 86–93. https://doi.org/10.36602/jsba.2024.18.86.

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Corrosion in carbon steel and oil pipelines has adverse economic and environmental effects. Therefore, there is interest in utilizing inexpensive and environmentally friendly materials to prevent and inhibit corrosion. In this study, two expired drugs, Lactulose (La.) and Triazepine Carboxylate (TC), were investigated as potential inhibitors of steel corrosion in 1M HCl. The weight loss method and the potentiometric method were employed to calculate the inhibition efficiency (IEw%) of these compounds. The study examined the effect of inhibitor concentration and temperature on IEw%, and also in
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Kovalchuk, Halyna, Oksana Lupak, Halyna Klepach, and Ihor Polyuzhyn. "POTENTIOMETRIC DETERMINATION OF THE ANTIOXIDANT ACTIVITY OF MEDICINAL PLANTS." Scientific Journal of Polonia University 35, no. 4 (2019): 102–9. http://dx.doi.org/10.23856/3512.

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The article deals with the analysis of the existing methods of investigating the antioxidant activity of plants’ origin and the expediency of measuring oxidation-reduction potential for this purpose.The integral AOA of alcohol extracts Urtica dioica, Trifolium pretense, Chelidonium majus, Hippophae rhamnoides has been determined by potentiometric method using the mediator system. It was established that the leaves of sea – buckthorn are characterised by the highest antioxidant activity (2.05 ± 0.1 mg AA / ml). The АОА of plants Urtica dioica, Chelidonium majus, that were growing along the tran
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Book chapters on the topic "Potentiometric evidences"

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Daniel, I. Randolph, and Michael Wisenbaker. "Research Background." In Harney Flats. University Press of Florida, 2017. http://dx.doi.org/10.5744/florida/9781683400226.003.0001.

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The I-75 Highway Salvage Program, administered by the Florida Division of Historical Resources (DHR) and funded by the Florida Department of Transportation and the Federal Highway Administration, facilitated DHR’s Bureau of Archaeological Research in the early to mid-1980s to locate and evaluate 31 archaeological sites in the proposed corridor of Interstate 75. Thirteen of these 31 sites were selected for Phase II testing, with 4 of the 13 (including Harney Flats) deemed significant enough to warrant Phase III mitigative salvage excavations. While most of these sites primarily contained Middle
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Burge, Scott R., Kiril D. Hristovski, Russell G. Burge, et al. "Exploiting the Electrical Nature of Biofilms for Long-Term Monitoring of Quiescent Aquatic Environments via Open-Circuit Microbial Potentiometric Sensors: Evidence of Long-Distance Electrical Signaling." In Pioneering Discoveries in Nanotechnology for Health and Wellbeing. WORLD SCIENTIFIC, 2025. https://doi.org/10.1142/9789819809028_0016.

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Reports on the topic "Potentiometric evidences"

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Kirby, Stefan M., J. Lucy Jordan, Janae Wallace, Nathan Payne, and Christian Hardwick. Hydrogeology and Water Budget for Goshen Valley, Utah County, Utah. Utah Geological Survey, 2022. http://dx.doi.org/10.34191/ss-171.

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Goshen Valley contains extensive areas of agriculture, significant wetlands, and several small municipalities, all of which rely on both groundwater and surface water. The objective of this study is to characterize the hydrogeology and groundwater conditions in Goshen Valley and calculate a water budget for the groundwater system. Based on the geologic and hydrologic data presented in this paper, we delineate three conceptual groundwater zones. Zones are delineated based on areas of shared hydrogeologic, geochemical, and potentiometric characteristics within the larger Goshen Valley. Groundwat
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