• Whether your application involves end point determinations in potentiometric titrations or continuous monitoring of specific ions, we can help you find the right electrode for the job. (coleparmer.com)
  • Potentiometric and optical ion sensors use highly selective lipophilic ionophores as a special additive in a plasticized PVC membrane have been thoroughly studied for application as a coulometric electrode. (auburn.edu)
  • Potentiometric characteristics of one of the studied electrodes under open cuircut conditions (squares) and for galvanostatically polarized electrode (triangles), I=10 nA. (science24.com)
  • The HI4108 cupric ion selective electrode is a complete potentiometric cell that contains a silver/silver chloride (Ag/AgCl) reference housed within a PEI plastic body with a potassium nitrate electrolyte. (hannaservice.si)
  • The HI4002 bromide ion selective electrode is a potentiometric half-cell sensor housed within an epoxy body. (comeau.ca)
  • The highly selective and sensitive PVC based membrane sensor was fabricated by using 1,3,5-tris [(2,3-dihydroxybenzylamino) amino methyl]cyclohexane (L) as a neutral membrane carrier for the potentiometric determination of Promethazine HCl. (journalcra.com)
  • Trace levels of fluoride in biological media are determined primarily by potentiometric (ion selective electrode [ISE]) and gas chromatographic (GC) methods. (cdc.gov)
  • There are four main types of ion-selective membrane used in ion-selective electrodes (ISEs): glass, solid state, liquid based, and compound electrode. (wikipedia.org)
  • Combination solid-state ISEs are electrodes that detect free ions in a solution. (hannaservice.si)
  • The two Cl-ISEs showed nearly Nernstean slopes for Cl - in ethanol solution (0-20%), In addition, each electrode had good linearity for ethanol with a slope of -2.51 mV/ethanol % (NPOE) and -1.01mV/ethanol% (DA), respectively. (elsevierpure.com)
  • In modern materials science, there is a plethora of characterization techniques of materials that can provide valuable insights into the fundamental chemical physics of solid-state devices such as chalcogenide glass ion-selective electrodes (ISEs). (edu.au)
  • Usage of specific resins allows preparation of selective electrodes for tens of different ions, both single-atom or multi-atom. (wikipedia.org)
  • This is the most widespread type of ion-specific electrode, since the wide variety of ion-specific resins allows preparation of a wide variety of electrodes selective for different ions, single-atom or multi-atom. (citizendium.org)
  • AlpHa's ISE portfolio can target over twenty different ions which are designed for both lab and continuous process environments. (alpha-measure.com)
  • Ion-selective electrodes are used in analytical chemistry and biochemical/biophysical research, where measurements of ionic concentration in an aqueous solution are required. (wikipedia.org)
  • Ion-selective electrodes are used in biochemical and biophysical research, where measurements of ionic concentration in an aqueous solution are required, usually on a real time basis. (citizendium.org)
  • Measure the concentration of potassium ions in aqueous solutions. (sargentwelch.com)
  • This sensor is easier to set up and use than other methods of measuring potassium ion concentration in aqueous solutions. (sargentwelch.com)
  • Connect the Ammonium Ion-Selective Electrode BNC to our electrode amplifiers to measure the potential (mV) and calculate the concentration of ammonium (NH 4 + ) ions in aqueous samples. (verniercanada.ca)
  • The Vernier Ammonium Ion-Selective Electrode BNC Connector is a BNC terminated electrode used to measure the concentration of ammonium (NH 4 + ) ions in aqueous samples. (verniercanada.ca)
  • Water-soluble colorimetric chelating agents enable the determination of metal ions in aqueous solution without solvent extraction. (dojindo.com)
  • An ion-selective electrode (ISE), also known as a specific ion electrode (SIE), is a transducer (or sensor) that converts the change in the concentration of a specific ion dissolved in a solution into an electrical potential. (wikipedia.org)
  • An Ion-selective electrode (ISE) is a transducer ( sensor ) which converts the activity of a specific ion dissolved in a solution into an electrical potential which can be measured by a voltmeter or pH meter , and compared to the potential of a non-specific reference electrode . (citizendium.org)
  • These electrodes consist of electronic conductor (electrode support), ion-to-electron transducer (usually conducting polymer) and polymeric ion-selective membrane, usually poly(vinyl chloride) (Fig. 1). (science24.com)
  • The conducting polymer poly(3,4-ethylenedioxythiophene) PEDOT was used as ion-to-electron transducer in the fabrication of SCISEs. (abo.fi)
  • Sension+ 9655C is a combination fluoride ion selective electrode (ISE) with an epoxy body, non-refillable, single-junction reference, and non-replaceable crystalline membrane selective to fluoride ions in solution. (globalspec.com)
  • The voltage response is proportional to the concentration of free fluoride ions in solution when the ionic strength is fixed. (cdc.gov)
  • All-solid-state ion selective electrodes (ASS-ISE) are promising sensors for environmental and clinical applications. (science24.com)
  • SMART STORM'S direction electrodes are rugged solid-state sensors with built in driTEK Teflon double junction references that do not require filling solutions, membrane replacements or operator maintenance. (smartstormgroup.com)
  • The Epoxy tubular body provides complete protection to the electrode which allows these sensors to be used in field applications by unskilled operators. (smartstormgroup.com)
  • Polishing strips for the solid state sensors are included with the electrode. (thomassci.com)
  • For example, an electrode based on Valinomycin may be used for the determination of potassium ion concentration. (wikipedia.org)
  • The coulometric protamine selective membrane has been utilized to release protamine and titrated against anticoagulant heparin in a clinically relevant concentration range as an example of coulometric non-electroactive polyion release The pulse galvanostatic PVC/DOS based membranes were also developed for whole blood protamine sensing in view of this matrix being better for in vivo applications. (auburn.edu)
  • The ISA ensures that the activity coefficient is constant so the concentration of free cupric ions can be measured. (hannaservice.si)
  • When the ionic strength of the solution is fixed by the addition of ISA, the voltage is proportional to the concentration of free ions in solution. (hannaservice.si)
  • Under optimized conditions, the high sensitivity of the coulometric method for the K+-selective SCISE made it possible to detect 5 µM concentration changes at the starting solution with 5 mM concentration, i.e. 0.1% change in activity was detectable. (abo.fi)
  • The coulometric method was also applied for detecting pH changes in seawater and concentration changes of K+ ions in control serum samples. (abo.fi)
  • Online ammonia nitrogen sensor, using ion selective electrode method to measure ammonia nitrogen concentration. (dissolved-oxygensensor.com)
  • The ammonium ion selective electrode directly detects ammonium ions in the water environment to determine the concentration of ammonia nitrogen. (dissolved-oxygensensor.com)
  • The ammonia nitrogen concentration is easily interfered by potassium ions during the measurement process, and potassium ion compensation is required. (dissolved-oxygensensor.com)
  • They can be used to determine the metal ion concentration in solutions. (dojindo.com)
  • Metal indicators and chelating agents are used to determine the concentration of specific metal ions in solution by chelate titration. (dojindo.com)
  • The concentration of neutral carriers, plasticizers, and counteranions used to prepare the PVC electrode determines its ion selectivity. (dojindo.com)
  • Electrodes which can be used to measure the concentration of particular ions in cells, tissues, or solutions. (nih.gov)
  • This solid state sensor requires a separate reference electrode to complete the measurement system. (comeau.ca)
  • A separate reference electrode can be used with more than one type half-cell ISE, saving some cost. (thomassci.com)
  • In practice there are several issues which affect this measurement, and different electrodes from the same batch will differ in their properties. (citizendium.org)
  • ION selective electrodes and fill solutions, for measurement of various chemicals in either MOLAR or PPM concentrations. (omega.com)
  • Measurement of ionized calcium is by ion-selective electrodes. (medscape.com)
  • To re-assess the performance of the Roche Cl − electrode compared to other manufacturers we evaluated the accuracy of Cl − measurement using EQA data of the first halves of 2019 and 2021 of the SKML schemes for Blood Gas Parameters and Clinical Chemistry in Blood. (degruyter.com)
  • Measurement of ionised magnesium may become more widely available with the availability of ion selective electrodes. (nih.gov)
  • Electrode with electrolyte gel cartridges and manual. (globalspec.com)
  • A simple press of the top portion of the ISE makes it easy to empty the electrolyte fill solution and replace when necessary.For the HI4108 to measure cupric ions accurately, it is important that the ionic strength of the standards and sample be adjusted to a high and constant value with the HI4000-00 ionic strength adjuster (ISA) solution. (hannaservice.si)
  • The obtained results indicate that the counter ions in the electrolyte solution used during electropolymerization play a role in the formation of the PEDOT solid-contact film, as well as influence the cyclic voltammograms when cycling in the electrolyte solution. (abo.fi)
  • Double junction reference electrodes allow the use of special outer chamber electrolyte formulas which can avoid or reduce interferences from other ions. (thomassci.com)
  • In this work glassy carbon (electrode support), conductivity polymer: polypyrrole and K + -selective membrane with K + -ionophore (valinomycin) was used. (science24.com)
  • The fluoride ion selective membrane utilizes a membrane consisting of a slice of a single crystal of lanthanum fluoride that has been doped with europium (II) fluoride to improve its conductivity (Skoog et al. (cdc.gov)
  • All electrodes include a 30-mL bottle of reference solution, a reference filling pipette, 1-m cable, BNC connector, and an instruction manual. (coleparmer.com)
  • Electrodes measure 12 mm diameter x 145 mm length and are equipped with a one meter cable and BNC type connector. (thomassci.com)
  • in order to provide the ionic specificity desired, the appropriate specific ion channel or carrier is added to the vinyl solution. (citizendium.org)
  • Selective coulometric release of non-electroactive ionic reagent is carried out using an ion-selective polymeric membrane. (auburn.edu)
  • Ion selective electrode standard solution and ionic strength enhancer_Product _Yangzhou guangning machinery glass co. (yzgnqhb.cn)
  • Ion Selective Electrodes for Flue Gas Desulfurization Wastewater Monitoring: Effects of Ionic Strength on Selective Ions. (ohio.edu)
  • An example is the potassium selective electrode, based on valinomycin as an ion-exchange agent. (wikipedia.org)
  • An example is the potassium selective electrode , based on the drug valinomycin as an ion-exchange agent. (citizendium.org)
  • Some of them are superior to naturally existing neutral carriers such as valinomycin, which is highly selective for potassium ions. (dojindo.com)
  • This coulometric technique is utilized to release calcium from the calcium selective membrane electrode to titrate EDTA in the complexometric direct and back titrations. (auburn.edu)
  • Ionized calcium binds to negatively charged sites on protein molecules, competing with hydrogen ions for the same binding sites on albumin and other calcium-binding proteins. (medscape.com)
  • Calcium is one of the most important metal ions for signal transduction in living cells. (dojindo.com)
  • Miniaturized implantable ion-selective electrodes or other approaches for monitoring one or more macromineral or trace mineral, especially analytes of public health concern, for example sodium, potassium, calcium, iodine, etc. (nih.gov)
  • Glass membranes are made from an ion-exchange type of glass (silicate or chalcogenide). (wikipedia.org)
  • Ion-exchange resins are based on special organic polymer membranes which contain a specific ion-exchange substance (resin). (wikipedia.org)
  • Ion-exchange resins are based on special organic polymer membranes which contain a specific ion channel or carrier (resin), often a drug or other biologically-derived substance. (citizendium.org)
  • This dissertation presents theory, experimental evidence and analysis of membranes optimized to suit the needs of a coulometric electrode. (auburn.edu)
  • Chronopotentiometry has been utilized to characterize the ion selective membranes for their polarizability under constant current coulometry. (auburn.edu)
  • Replacement Membranes, for Ammonia Electrode, Ea. (thomassci.com)
  • However, few colorimetric chelating reagents are highly selective. (dojindo.com)
  • Fluoride selective electrode Ion transport number Solvated electron Electrochemical hydrogen compressor A. J. Bard and L. Faulkner (2000). (wikipedia.org)
  • In this thesis, cation-selective SCISEs (K+, H+, Ca2+ and Pb2+) and anion-sensitive SCISEs (Cl-, NO 3 , ClO 4 and SO2- 4 ) were studied utilizing chronoamperometry, coulometry, and electrochemical impedance spectroscopy (EIS). (abo.fi)
  • In this paper, electrochemical impedance spectroscopy (EIS), X-ray photoelectron spectrometry (XPS) and secondary ion mass spectrometry (SIMS) have been used in the elucidation of the mechanistic chemistry of the cadmium chalcogenide glass ISE. (edu.au)
  • 2. Real-time monitoring of strand-displacement DNA amplification by a contactless electrochemical microsystem using interdigitated electrodes. (nih.gov)
  • 8. Electrochemical quantification of DNA amplicons via the detection of non-hybridised guanine bases on low-density electrode arrays. (nih.gov)
  • 10. Fabrication and functionalization of PCB gold electrodes suitable for DNA-based electrochemical sensing. (nih.gov)
  • 13. Thionin attached to a gold electrode modified with self-assembly of Mo(6)S(9-X)I(X) nanowires for amplified electrochemical detection of natural DNA. (nih.gov)
  • ISEF121 is a digital, combination fluoride ion selective electrode (ISE) with a non-refillable, single junction reference and built-in temperature sensor. (globalspec.com)
  • The solid state sensor and maintenance free reference makes these electrodes ideal for both laboratory and field work. (smartstormgroup.com)
  • A solid-state sensor electrode develops a voltage due to the ion exchange that occurs between the solution and the inorganic membrane. (hannaservice.si)
  • Water ingress to the sensor due to replacement of the pH electrode is not covered by the warranty. (dissolved-oxygensensor.com)
  • The proposed sensor was used for the selective determination of Promethazine HCl. (journalcra.com)
  • In use, the electrode wire is connected to one terminal of a galvanometer or pH meter, the other terminal of which is connected to a reference electrode, and both electrodes are immersed in the solution to be tested. (citizendium.org)
  • Use electrodes with a meter that has a resolution of 0.1 mV for the most accurate results. (coleparmer.com)
  • Each SMART STORM'S Combination ISE has a 1 metre cable and can be used both on Smart Storm's USI and USM products and all other types of pH/ION meter including laboratory bench and research models. (smartstormgroup.com)
  • Chalcogenide glass also has selectivity for double-charged metal ions, such as Pb2+, and Cd2+. (wikipedia.org)
  • The Alkali Metal Ions: Their Role in Life. (wikipedia.org)
  • Metal Ions in Life Sciences. (wikipedia.org)
  • The color of the metal indicator varies sharply with the association and dissociation of metal ions, so the total amount of a metal ion can be estimated by the amount of titration reagent used. (dojindo.com)
  • EDTA forms a 1:1 complex with most metal ions that are divalent or more. (dojindo.com)
  • Fluorescent metal indicators are useful for determining the endpoint of titration of metal ions in stained samples. (dojindo.com)
  • Colorimetric chelating reagents form colored complexes with metal ions in pH-controlled solutions. (dojindo.com)
  • Their selectivity depends on the dissociation constants of metal ions and their sensitivity depends on the molar absorptivity of the complex. (dojindo.com)
  • For example, Nitroso-PSAP forms complexes with several heavy metal ions, but the maximum wavelength of the Nitroso-PSAP-Fe complex is considerably longer than that of the other metal complexes. (dojindo.com)
  • Thus, iron can be determined without interference from other metal ions. (dojindo.com)
  • EDTA forms stable complexes with various metal ions in chelate titration. (dojindo.com)
  • The total consumption of EDTA solution indicates the total amount of mixed metal ions contained in the sample solution. (dojindo.com)
  • To determine the amount of one specific metal ion in the sample solution, masking reagents should be added to remove other metal ions.Table 2 shows popular masking reagents for chelatometry and colorimetry. (dojindo.com)
  • Because the polymer is covered by a cation-exchanging membrane, K + ion spontaneously flow from the conducting polymer to the diluted sample solution. (science24.com)
  • Use with Vernier interfaces requires the Electrode Amplifier . (verniercanada.ca)
  • The HI4002 is a solid state, half-cell ion selective electrode (ISE) for the determination of bromide (Br-) in solution. (comeau.ca)
  • The silver bromide sensing pellet produces a potential change due to the bromide ion exchange between the inorganic pellet membrane and the sample. (comeau.ca)
  • Bromide Analysis in Soil by Ion Selective Electrode. (ca.gov)
  • Economy Epoxy Electrodes have a durable epoxy body and are well-suited for portable field applications. (coleparmer.com)
  • Laboratory Glass Electrodes are double-junction in design, with a glass body that provides high-quality measurements for your laboratory applications. (coleparmer.com)
  • Thomas also offers a half-cell version that requires a double junction reference electrode. (thomassci.com)
  • This electrode gave a response slope of about 60 mV/pMg 2+ ranging from 1 Χ 10 -4 to 2 Χ 10 -2 M Mg 2+ , which corresponds to twice the usual Nernstian theoretical response slope for the divalent cation. (elsevierpure.com)
  • This electrode gave a response slope of about 60 mV/pMg2+ ranging from 1 Χ 10-4 to 2 Χ 10-2 M Mg2+, which corresponds to twice the usual Nernstian theoretical response slope for the divalent cation. (elsevierpure.com)
  • The current and cumulated charge responses of cation-selective SCISEs and anion-sensitive SCISEs are of opposite sign under the same experimental protocol, in analogy with potentiometry. (abo.fi)
  • The use of Ion Selective Electrodes offers several advantages over other methods of analysis. (globalspec.com)
  • Two methods were explored, one being ion chromatography coupled with inductively coupled plasma mass spectrometry (IC-ICP/MS) and the other being a liquid chromatography/mass spectrometry (LC/ MS)-based method. (news-medical.net)
  • The methods discussed below are for the analysis of the fluoride ion, or in the case of gaseous acid fluorides, hydrogen fluoride. (cdc.gov)
  • There are several methods for measuring a particular metal ion in solution, including chelate titration, colorimetric detection, fluorometric detection, colorimetric detection coupled with solvent extraction, and precipitation titration. (dojindo.com)
  • The high selectivity as a result of lipophilic ionophore in the membrane results in good coulometric efficiency, even in the presence of interfering ions in the background. (auburn.edu)
  • The ion selectivities for poly(vinyl chloride) (PVC)-matrix membrane ion-selective electrodes based on seven lipophilic diketone compounds were examined. (elsevierpure.com)
  • Fluoride is measured in urine samples using an ion-selective electrode (ISE), which measures the activity of fluoride ions as a voltage response. (cdc.gov)
  • These fast and accurate electrodes do not require an external reference-they're easier to use than separate sensing and reference half-cell electrodes. (coleparmer.com)
  • In the coulometric transduction method, instead of measuring the potential between the SCISE and reference electrode, the potential is held constant and the current between the SCISE and counter electrode is measured. (abo.fi)
  • Use a pH electrode as a reference electrode for better stability. (dissolved-oxygensensor.com)
  • The Ion Selective Electrodes (ISE probe) need cooperate with reference electrode, such as 232-01 reference electrode. (inesarex.com)
  • The Combined Ion Selective Electrodes(ISE probe) combines the reference electrode. (inesarex.com)
  • The Oakton 0.1M reference fill solution is mainly used with pH electrodes to ensure high performance and durability. (thomassci.com)
  • The Oakton KNO3 reference fill solution is mainly used with pH electrodes and reference electrodes to provide more reliable results. (thomassci.com)
  • Also compatible with Go Direct ® Electrode Amplifier and Go Direct ® Ion-Selective Electrode Amplifier . (verniercanada.ca)
  • One end of a piece of capillary tubing about an inch or two long is dipped into this vinyl solution containing the specific ion carrier, and removed to let the vinyl solidify into a plug at that end of the tube. (citizendium.org)
  • For convenience in use, the open end of the tubing is fitted through a tight o-ring into a somewhat larger diameter tubing containing the same salt solution, with a silver or platinum electrode wire inserted. (citizendium.org)
  • A transient current is obtained whenever the primary ion activity changes in the solution. (abo.fi)
  • If it is not wet enough, please add 3mol / L potassium chloride solution and let the electrode be stored in the solution with potassium chloride. (dissolved-oxygensensor.com)
  • Proper calibration of ion selective electrode (ISE) meters is vital to ensure accurate results. (camblab.info)
  • The principle on which these electrodes are based is that the alkali metal ion is encapsulated in a molecular cavity whose size is matched to the size of the ion. (wikipedia.org)
  • A very common example of this type of electrode is the pH glass electrode. (wikipedia.org)
  • This is the most widespread type of ion-specific electrode. (wikipedia.org)
  • A very common example of this type of electrode is the pH glass electrode found in almost every chemical laboratory. (citizendium.org)
  • Fortunately, a subsequent call for optimisation of the Roche ISE electrode has led to the launch of an improved Roche ISE calibrator procedure in 2020, where the amount of HCO 3 − in the calibrator was lowered to more physiological concentrations (Roche customer communication, April 2020). (degruyter.com)
  • 1. Integrated biochip for label-free and real-time detection of DNA amplification by contactless impedance measurements based on interdigitated electrodes. (nih.gov)
  • 17. Real-time Monitoring and Detection of Primer Generation-Rolling Circle Amplification of DNA Using an Ethidium Ion-selective Electrode. (nih.gov)
  • The ion selective membrane has been applied as a coulometric electrode for several well-known and useful complexometric and precipitation titrations. (auburn.edu)
  • The inner membrane phase boundary is polarizable unlike the metal-based coulometric electrodes. (auburn.edu)
  • Knowledge of this polarization behaviour is essential for design and applications of coulometric electrodes. (auburn.edu)
  • As one of the pioneering works in the field of solid-contact ion-selective electrodes (SCISEs), a new coulometric transduction method was proposed by Bobacka's group from Åbo Akademi University. (abo.fi)
  • The amperometric and coulometric response can be improved by increasing the geometrical area of the SCISE surface and by applying a thinner ion-selective membrane (ISM) deposited using a spin-coating technique. (abo.fi)
  • The coulometric response of the Pb2+-SCISEs was mainly limited by ion transport in the poly(3,4 ethylenedioxythiophene) poly(styrene sulfonate) PEDOT(PSS) solid-contact layer, while the coulometric response of Ca2+-SCISEs was mainly dependent on the ion transport through the ISM. (abo.fi)