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75 Newest Publications about the topic ph measuring

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Off-On-Off Fluorescent Chemosensor for pH Measurement with Terbium(III) Complex Based on a Tripodal Salicylic-Acid Derivative

28-Aug-2013 | Yan-Ling Yang; Ya-Wen Wang; Dong-Zhu Duan; Ai-Jiang Zhang; Jianguo Fang; Yu Peng, Organic & Biomolecular Chemistry, 2013

New Tb(III) and Eu(III) complexes have been synthesized as the potential pH probes using a tripodal substituted-salicylic ligand (H3BSA). Among them, this carboxylate ligand is found to be a good sensitizer for Tb(III) emission owing to the superior match of the triplet energy level of the ligand ...

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Potentiometric determination of pH values of dilute sulfuric acid solutions with glass combination electrode equipped with ionic liquid salt bridge

25-Aug-2013 | Author(s): Manabu Shibata , Makoto Kato , Yasukazu Iwamoto , Satoshi Nomura , Takashi Kakiuchi, Journal of Electroanalytical Chemistry, 2013

Publication date: 15 September 2013 Source:Journal of Electroanalytical Chemistry, Volume 705 Author(s): Manabu Shibata , Makoto Kato , Yasukazu Iwamoto , Satoshi Nomura , Takashi Kakiuchi The pH of dilute aqueous sulfuric acid solutions in the concentration range between 20 and ...

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Fabrication and Characterization of Dual Function Nanoscale pH-Scanning Ion Conductance Microscopy (SICM) Probes for High Resolution pH Mapping

22-Aug-2013 | Binoy Paulose Nadappuram; Kim McKelvey; Rehab Al Botros; Alex W. Colburn; Patrick R. Unwin, Analytical Chemistry, 2013

The easy fabrication and use of nanoscale dual function pH-scanning ion conductance microscopy (SICM) probes is reported. These probes incorporate an iridium oxide coated carbon electrode for pH measurement and an SICM barrel for distance control, enabling simultaneous pH and topography mapping. ...

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Physical–Chemical Characterization of Purified Cresol Red for Spectrophotometric pH Measurements in Seawater

08-Jul-2013 | Author(s): Mark C. Patsavas , Robert H. Byrne , Xuewu Liu, Marine Chemistry, 2013

Publication date: Available online 1 July 2013 Source:Marine Chemistry Author(s): Mark C. Patsavas , Robert H. Byrne , Xuewu Liu The use of impure cresol red in spectrophotometric seawater pH measurements can introduce systematic inaccuracies greater than 0.1. Cresol red has been ...

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The dual role of Parylene C in chemical sensing: Acting as an encapsulant and as a sensing membrane for pH monitoring applications

24-Jun-2013 | Author(s): Tatiana Trantidou , David J. Payne , Vasileios Tsiligkiridis , Yu-Chun Chang , Christofer Toumazou , ..., Sensors and Actuators B: Chemical, 2013

Publication date: September 2013 Source:Sensors and Actuators B: Chemical, Volume 186 Author(s): Tatiana Trantidou , David J. Payne , Vasileios Tsiligkiridis , Yu-Chun Chang , Christofer Toumazou , Themistoklis Prodromakis In this work, we demonstrate a new property of Parylene C ...

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Evaluation of a Compact Differential Cell for Secondary pH Measurements by a Bilateral Interlaboratory Comparison

21-Jun-2013 | Fabiano Barbieri Gonzaga, Júlio Cesar Dias, Diana Jehnert, Barbara Werner, Karin Schräpler, Leoš Vyskočil, Electroanalysis, 2013

Abstract This work presents a new differential potentiometric cell for the standardization of pH buffer solutions and its evaluation, by means of a bilateral interlaboratory comparison, in relation to a traditional Baucke cell. The results obtained with the two cells were exactly the same for ...

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In situ pH Measurement during the Formation of Conversion Coatings on an Aluminum Alloy (AA2024)

05-Jun-2013 | Liangliang Li; Annika L Desouza; Greg M. Swain, Analyst, 2013

The measurement of interfacial pH change is important for understanding the formation mechanism of conversion coatings that are used to protect metals from corrosion. In this work, we used a tungsten microelectrode to measure the interfacial pH change near the surface of an aluminium alloy ...

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Mapping the Pharyngeal and Intestinal pH of Caenorhabditis elegans and Real-Time Luminal pH Oscillations Using Extended Dynamic Range pH-Sensitive Nanosensors

20-May-2013 | Veeren M. Chauhan; Gianni Orsi; Alan Brown; David I. Pritchard; Jonathan W. Aylott, ACS Nano, 2013

Extended dynamic range pH-sensitive ratiometric nanosensors, capable of accurately mapping the full physiological pH range, have been developed and used to characterize the pH of the pharyngeal and intestinal lumen of Caenorhabditis elegans in real-time. Nanosensors, 40 nm in diameter, were ...

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pH Evolution in Sea Ice Grown at an Outdoor Experimental Facility

05-May-2013 | Author(s): A.A. Hare , F. Wang , D. Barber , N.-X. Geilfus , R. Galley , S. Rysgaard, Marine Chemistry, 2013

Publication date: Available online 1 May 2013Source:Marine Chemistry Author(s): A.A. Hare , F. Wang , D. Barber , N.-X. Geilfus , R. Galley , S. Rysgaard The pH of sea ice and brine was experimentally determined during initial ice growth and melt at the Sea-ice Environmental Research ...

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A new MCM-41 supported HPF6 catalyst for the library synthesis of highly substituted 1,4-dihydropyridines and oxidation to pyridines: report of one-dimensional packing towards LMSOMs and studies on their photophysical properties

18-Apr-2013 | Suman Ray; Mike Brown; Asim Bhaumik; Arghya Dutta; Chhanda Mukhopadhyay, Green Chemistry, 2013

A new heterogeneous MCM-41 silica supported HPF6 catalyst has been synthesized and characterized using an array of sophisticated analytical techniques like BET, XRD, HRTEM, EDX, 29Si MAS NMR, TGA, FTIR, and pH measurement. The broad applicability of silica-HPF6 was probed through a library ...

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