Results 211 to 220 of about 21,137 (261)
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Potentiometric Anion Selective Sensors
Electroanalysis, 1999In comparison with selective receptors (and sensors) for cationic species, work on the selective complexation and detection of anions is of more recent date. There are three important components for a sensor, a transducer element, a membrane material that separates the transducer element and the aqueous solution, and the receptor molecule that ...
Antonisse, M.M.G., Reinhoudt, D.N.
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Dysprosium selective potentiometric membrane sensor
Materials Science and Engineering: C, 2013A novel Dy(III) ion-selective PVC membrane sensor was made using a new synthesized organic compound, 3,4-diamino-N'-((pyridin-2-yl)methylene)benzohydrazide (L) as an excellent sensing element. The electrode showed a Nernstian slope of 19.8 ± 0.6 mV per decade in a wide concentration range of 1.0 × 10(-6)-1.0 × 10(-2) mol L(-1), a detection limit of 5.5
Hassan Ali, Zamani +2 more
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Potentiometric sensor for dipicolinic acid
Biosensors and Bioelectronics, 2005A potentiometric chemosensor for selective determination of dipicolinic acid (2,6-pyridinedicarboxylic acid, DPA) was developed based on the surface imprinting technique coupled with a nanoscale transducer: an indium tin oxide (ITO)-coated glass plate. The sensor fabrication conditions, optimal recognition condition, as well as selectivity, sensitivity,
Yanxiu, Zhou, Bin, Yu, Kalle, Levon
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1998
This chapter describes the functioning of potentiometric sensors, how they can be usefully employed, and in which experimental situations. Potentiometric sensors work through the measurement of an equilibrium potential, i.e. the potential at zero current, of the sensor versus a suitable reference electrode.
Christopher M. A. Brett +1 more
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This chapter describes the functioning of potentiometric sensors, how they can be usefully employed, and in which experimental situations. Potentiometric sensors work through the measurement of an equilibrium potential, i.e. the potential at zero current, of the sensor versus a suitable reference electrode.
Christopher M. A. Brett +1 more
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Selectivity of Potentiometric Ion Sensors
Analytical Chemistry, 2000Selectivities of solvent polymeric membrane ion-selective electrodes (ISEs) are quantitatively related to equilibria at the interface between the sample and the electrode membrane. However, only correctly determined selectivity coefficients allow accurate predictions of ISE responses to real-world samples.
E, Bakker, E, Pretsch, P, Bühlmann
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Modeling of light-addressable potentiometric sensors
IEEE Transactions on Electron Devices, 1997In this paper, the extension of numerical simulation techniques to the analysis of light-addressable potentiometric sensors (LAPS) is discussed in detail. To this purpose, proper physical models of both the ion-sensitive and the photo-sensitive transduction mechanisms have been incorporated into the framework of a general-purpose device simulator.
L. COLALONGO +5 more
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Potentiometric butyrylcholine sensor for organophosphate pesticides
Biosensors and Bioelectronics, 1994A highly sensitive potentiometric butyrylcholine (BuCh) sensor based on plasticized poly(vinyl chloride) membrane was fabricated using tetrakis (3,5-bis[2-methoxy-hexafluoro-methyl] phenyl) borate (HFPB) as a cation exchanger. The sensor showed a Nernstian response from 10(-1) M to 10(-6) M for BuCh. The detection limit of the sensor was 1.8 x 10(-7) M.
T, Imato, N, Ishibashi
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Potentiometric glucose sensors.
Hormone and metabolic research. Supplement series, 1989The determination of glucose is possible with the enzymatic reaction of glucose oxidase and potentiometric detection. The signal is proportional to the concentration up to 50 mg/dl. This value is fixed by the concentration of oxygen in the sample. By adding catalase, concentrations up to 2000 mg/dl are detectable. The steepness of the calibration curve
Honold, F., Cammann, K.
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Potentiometric sensors improve dramatically
TrAC Trends in Analytical Chemistry, 2002Abstract A report on the International Conference on Electrochemical Sensors (Matrafured 02) held in Matrafured, Hungary, 13–18 October 2002.
Ernö Pretsch +2 more
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Gallium Nitride-Based Potentiometric Anion Sensor
Analytical Chemistry, 2004The gallium nitride (GaN) semiconductor is used as the sensing element for the development of a potentiometric anion sensor. The anion recognition mechanism is based on the selective interaction of anions in solution with the epitaxial Ga-face polarity GaN (0001) wurtzite crystal film grown on sapphire.
Nikos A, Chaniotakis +3 more
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