The ISE has a measurement range of 40,100 to 0.02 parts per million (ppm) as Ca+2 and 100,000 to 0.05 ppm as CaCO3 (1 to 5E-7M). The main interfering ions are Pb+2, Hg+2, H+, and Sr+2 as well as higher concentrations of Fe+2, Cu+2, Ni+2, NH4+, Na+, Tris+, Li+, K+, Ba+2, Zn+2, and Mg+2. The electrode operates in temperatures ranging from 0 to 40 degrees C (32 to 104 degrees F) and is recommended for use in solutions with pH ranging from 2.5 to 11. It is 12mm in diameter and 110mm long, and has a 1m cable with a Bayonet Neill-Concelman (BNC) connector for attaching to meters with a BNC connection. ISEs respond selectively to ions in the presence of other ions, and are commonly used for water testing and analyzing biological samples in hydroponics, aquaculture, and agriculture, among other applications. </p><p> An electrode, also called a sensor or probe, is an instrument used with a meter to test and measure parameters of a substance. All electrodes are probes or sensors, but not all probes are electrodes or sensors. Probes, such as temperature probes, are used to penetrate a material for measurement. Common electrode types are pH, total dissolved solid (TDS), oxidation reduction potential (ORP), and ion selective electrode (ISE). They come in standard models or in all-in-one (sometimes called 3-in-1) models, which have a built-in temperature sensor for automatic temperature compensation (ATC). Electrodes can be half-cell or full- (also called combination) cell type. They can be refillable or non-refillable. Housing material is typically glass or epoxy, and sensors are commonly made with stainless steel or a glass bulb. pH electrodes, which measure the pH of a substance, often have a glass bulb. The bulb senses hydrogen ions, and generates a millivoltage that is picked up by the filling solution and transferred to a wire that connects to the pH meter. ORP, also known as redox, electrodes measure dissolved oxygen in aqueous solutions to determine the level of contaminants and their ability to act as oxidizing or reducing agents. Ion selective electrodes (ISEs) respond selectively to ions in the presence of other ions. Electrodes are commonly used by researchers, manufacturers, and hobbyists in a wide variety of industries, such as aquaculture, agriculture, chemistry, food and beverage, wine-making and water-testing, and for scientific applications. An electrode can be used with a datalogger to assist in temperature measurement. </p><p> Thermo Fisher Scientific manufactures analytical instruments, laboratory equipment, consumables, and software under the Thermo Scientific, Fisher Scientific, and Nalgene brands, among others. The company was founded in 2006, and is headquartered in Waltham, MA. </p><h5>What's in the Box?</h5><ul><li>Thermo Scientific Orion 9320BN calcium ISE</li><li>1m cable</li></ul></div>
The Thermo Scientific Orion GD9156BNWP green, combination, epoxy body pH electrode has a silver/silver chloride (Ag/AgCl) internal reference, glass fiber junction, and a waterproof Bayonet Neill-Concelman (BNC) connector with 1 m cable. While most glass pH electrodes are manufactured with glass that contains lead, Thermo Scientific green electrodes meet Restriction of Hazardous Substances (RoHS) requirements, and contain no lead or mercury, for normal disposal. The unique double-junction reference system separates the sample from contact with silver ions, which means the electrode can be used with samples containing silver complexing or binding agents, such as tris (hydroxymethyl) aminomethane (TRIS or THAM), proteins, and sulfides. The electrode has a small hole, for refilling the KCl fill solution, which prolongs the electrode life. This electrode is for use in aqueous solutions.</p> <p>pH range is 0 to 14 (+ or - 0.02 pH), temperature range is 0 to 90 degrees C (32 to 194 degrees F), and body dimensions are 120 mm (4.72?) length x 12 mm (0.47?) diameter, with 1 m (39?) cable. The cap diameter is 16 mm. Buffer and storage solutions are sold separately.</p> <p> pH electrodes are used for measuring the pH of a substance. They are often constructed of glass, which senses hydrogen ions, and generates a millivoltage that is picked up by the filling solution and transferred to a wire that connects to the pH meter. </p> <p> Thermo Fisher Scientific manufactures analytical instruments, laboratory equipment, consumables, and software under the Thermo Scientific and Fisher Scientific brands, among others. The company was founded in 2006, and is headquartered in Waltham, MA.</p> </div>