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66 relations: Accuracy and precision, Acid, Agriculture, Alkalinity, Aqueous solution, Arnold Orville Beckman, Beckman Coulter, Brewing, Buffer solution, Calibration, California Institute of Technology, Cell (biology), Clinical chemistry, Cole-Parmer, Colorimetry (chemical method), Detection, Deutsches Institut für Normung, Distilled water, Dynamic equilibrium, Electric battery, Electric potential, Electrical network, Environmental remediation, Experiment, Functional group, Glass electrode, Good laboratory practice, Hydrogen ion, Ion, Ion selective electrode, ISFET, Laboratory, Lemon, Mains electricity, Manufacturing, Miniaturization, Multimeter, National Historic Chemical Landmarks, Nernst equation, PH, PH indicator, Potentiometer, Potentiometer (measuring instrument), Purified water, Quality control, Quinhydrone electrode, Radiometer (company), Reference electrode, Reproducibility, S. P. L. Sørensen, ..., Saturated calomel electrode, Scientific instrument, Silicate, Silver chloride electrode, Soil, Standard hydrogen electrode, Sunkist Growers, Incorporated, Swimming pool, Taiwan, Tap water, Thermocouple, Thermodynamic activity, Trade secret, Usability, Voltmeter, Water quality. Expand index (16 more) »
Accuracy and precision
Precision is a description of random errors, a measure of statistical variability.
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Acid
An acid is a molecule or ion capable of donating a hydron (proton or hydrogen ion H+), or, alternatively, capable of forming a covalent bond with an electron pair (a Lewis acid).
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Agriculture
Agriculture is the cultivation of land and breeding of animals and plants to provide food, fiber, medicinal plants and other products to sustain and enhance life.
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Alkalinity
Alkalinity is the capacity of water to resist changes in pH that would make the water more acidic.
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Aqueous solution
An aqueous solution is a solution in which the solvent is water.
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Arnold Orville Beckman
Arnold Orville Beckman (April 10, 1900 – May 18, 2004) was an American chemist, inventor, investor, and philanthropist.
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Beckman Coulter
Beckman Coulter Inc., is an American company that makes biomedical laboratory instruments.
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Brewing
Brewing is the production of beer by steeping a starch source (commonly cereal grains, the most popular of which is barley) in water and fermenting the resulting sweet liquid with yeast.
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Buffer solution
A buffer solution (more precisely, pH buffer or hydrogen ion buffer) is an aqueous solution consisting of a mixture of a weak acid and its conjugate base, or vice versa.
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Calibration
Calibration in measurement technology and metrology is the comparison of measurement values delivered by a device under test with those of a calibration standard of known accuracy.
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California Institute of Technology
The California Institute of Technology (abbreviated Caltech)The university itself only spells its short form as "Caltech"; other spellings such as.
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Cell (biology)
The cell (from Latin cella, meaning "small room") is the basic structural, functional, and biological unit of all known living organisms.
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Clinical chemistry
Clinical chemistry (also known as chemical pathology, clinical biochemistry or medical biochemistry) is the area of chemistry that is generally concerned with analysis of bodily fluids for diagnostic and therapeutic purposes.
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Cole-Parmer
Cole-Parmer is a privately held scientific and industrial instrument distributor based in Vernon Hills, Illinois.
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Colorimetry (chemical method)
In physical and analytical chemistry, colorimetry or colourimetry is a technique "used to determine the concentration of colored compounds in solution." A colorimeter is a device used to test the concentration of a solution by measuring its absorbance of a specific wavelength of light (not to be confused with the tristimulus colorimeter used to measure colors in general).
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Detection
In general, detection is the extraction of particular information from a larger stream of information without specific cooperation from or synchronization with the sender.
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Deutsches Institut für Normung
Deutsches Institut für Normung e.V. (DIN; in English, the German Institute for Standardization) is the German national organization for standardization and is the German ISO member body.
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Distilled water
Distilled water is water that has been boiled into steam and condensed back into liquid in a separate container.
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Dynamic equilibrium
In chemistry, a dynamic equilibrium exists once a reversible reaction ceases to change its ratio of reactants/products, but substances move between the chemicals at an equal rate, meaning there is no net change.
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Electric battery
An electric battery is a device consisting of one or more electrochemical cells with external connections provided to power electrical devices such as flashlights, smartphones, and electric cars.
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Electric potential
An electric potential (also called the electric field potential, potential drop or the electrostatic potential) is the amount of work needed to move a unit positive charge from a reference point to a specific point inside the field without producing any acceleration.
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Electrical network
An electrical network is an interconnection of electrical components (e.g. batteries, resistors, inductors, capacitors, switches) or a model of such an interconnection, consisting of electrical elements (e.g. voltage sources, current sources, resistances, inductances, capacitances).
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Environmental remediation
Environmental remediation deals with the removal of pollution or contaminants from environmental media such as soil, groundwater, sediment, or surface water.
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Experiment
An experiment is a procedure carried out to support, refute, or validate a hypothesis.
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Functional group
In organic chemistry, functional groups are specific substituents or moieties within molecules that are responsible for the characteristic chemical reactions of those molecules.
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Glass electrode
A glass electrode is a type of ion-selective electrode made of a doped glass membrane that is sensitive to a specific ion.
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Good laboratory practice
In the experimental (non-clinical) research arena, the phrase good laboratory practice or GLP specifically refers to a quality system of management controls for research laboratories and organizations to ensure the uniformity, consistency, reliability, reproducibility, quality, and integrity of chemical (including pharmaceuticals) non-clinical safety tests; from physio-chemical properties through acute to chronic toxicity tests.
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Hydrogen ion
A hydrogen ion is created when a hydrogen atom loses or gains an electron.
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Ion
An ion is an atom or molecule that has a non-zero net electrical charge (its total number of electrons is not equal to its total number of protons).
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Ion selective electrode
An ion-selective electrode (ISE), also known as a specific ion electrode (SIE), is a transducer (or sensor) that converts the activity of a specific ion dissolved in a solution into an electrical potential.
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ISFET
An ISFET is an ion-sensitive field-effect transistor, that is a field-effect transistor used for measuring ion concentrations in solution; when the ion concentration (such as H+, see pH scale) changes, the current through the transistor will change accordingly.
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Laboratory
A laboratory (informally, lab) is a facility that provides controlled conditions in which scientific or technological research, experiments, and measurement may be performed.
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Lemon
The lemon, Citrus limon (L.) Osbeck, is a species of small evergreen tree in the flowering plant family Rutaceae, native to Asia.
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Mains electricity
Mains electricity (as it is known in the UK; US terms include grid power, wall power, and domestic power) is the general-purpose alternating-current (AC) electric power supply.
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Manufacturing
Manufacturing is the production of merchandise for use or sale using labour and machines, tools, chemical and biological processing, or formulation.
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Miniaturization
Miniaturization (Br.Eng.: Miniaturisation) is the trend to manufacture ever smaller mechanical, optical and electronic products and devices.
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Multimeter
A multimeter or a multitester, also known as a VOM (volt-ohm-milliammeter), is an electronic measuring instrument that combines several measurement functions in one unit.
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National Historic Chemical Landmarks
The National Historic Chemical Landmarks program was launched by the American Chemical Society in 1992 to recognize seminal achievements in the history of chemistry and related professions.
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Nernst equation
In electrochemistry, the Nernst equation is an equation that relates the reduction potential of an electrochemical reaction (half-cell or full cell reaction) to the standard electrode potential, temperature, and activities (often approximated by concentrations) of the chemical species undergoing reduction and oxidation.
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PH
In chemistry, pH is a logarithmic scale used to specify the acidity or basicity of an aqueous solution.
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PH indicator
A pH indicator is a halochromic chemical compound added in small amounts to a solution so the pH (acidity or basicity) of the solution can be determined visually.
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Potentiometer
A potentiometer is a three-terminal resistor with a sliding or rotating contact that forms an adjustable voltage divider.
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Potentiometer (measuring instrument)
A potentiometer is an instrument for measuring voltage by comparison of an unknown voltage with a known reference voltage.
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Purified water
Purified water is water that has been mechanically filtered or processed to remove impurities and make it suitable for use.
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Quality control
Quality control, or QC for short, is a process by which entities review the quality of all factors involved in production.
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Quinhydrone electrode
The quinhydrone electrode is a type of redox electrode which can be used to measure the hydrogen ion concentration (pH) of a solution in a chemical experiment.
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Radiometer (company)
Radiometer is a Danish multinational company which develops, manufactures and markets solutions for blood sampling, blood gas analysis, transcutaneous monitoring, immunoassay testing and the related IT management systems.
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Reference electrode
A reference electrode is an electrode which has a stable and well-known electrode potential.
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Reproducibility
Reproducibility is the closeness of the agreement between the results of measurements of the same measurand carried out under changed conditions of measurement.
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S. P. L. Sørensen
Søren Peder Lauritz Sørensen (9 January 1868 – 12 February 1939) was a Danish chemist, famous for the introduction of the concept of pH, a scale for measuring acidity and alkalinity.
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Saturated calomel electrode
The Saturated calomel electrode (SCE) is a reference electrode based on the reaction between elemental mercury and mercury(I) chloride.
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Scientific instrument
A scientific instrument is, broadly speaking, a device or tool used for scientific purposes, including the study of both natural phenomena and theoretical research.
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Silicate
In chemistry, a silicate is any member of a family of anions consisting of silicon and oxygen, usually with the general formula, where 0 ≤ x Silicate anions are often large polymeric molecules with an extense variety of structures, including chains and rings (as in polymeric metasilicate), double chains (as in, and sheets (as in. In geology and astronomy, the term silicate is used to mean silicate minerals, ionic solids with silicate anions; as well as rock types that consist predominantly of such minerals. In that context, the term also includes the non-ionic compound silicon dioxide (silica, quartz), which would correspond to x.
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Silver chloride electrode
A silver chloride electrode is a type of reference electrode, commonly used in electrochemical measurements.
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Soil
Soil is a mixture of organic matter, minerals, gases, liquids, and organisms that together support life.
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Standard hydrogen electrode
The Standard hydrogen electrode (abbreviated SHE), is a redox electrode which forms the basis of the thermodynamic scale of oxidation-reduction potentials.
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Sunkist Growers, Incorporated
Sunkist Growers, Incorporated is an American citrus growers' non-stock membership cooperative composed of 6,000 members from California and Arizona.
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Swimming pool
A swimming pool, swimming bath, wading pool, or paddling pool is a structure designed to hold water to enable swimming or other leisure activities.
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Taiwan
Taiwan, officially the Republic of China (ROC), is a state in East Asia.
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Tap water
Tap water (running water, city water, town water, municipal water, etc.) is water supplied to a tap (valve).
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Thermocouple
A thermocouple is an electrical device consisting of two dissimilar electrical conductors forming electrical junctions at differing temperatures.
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Thermodynamic activity
In chemical thermodynamics, activity (symbol) is a measure of the "effective concentration" of a species in a mixture, in the sense that the species' chemical potential depends on the activity of a real solution in the same way that it would depend on concentration for an ideal solution.
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Trade secret
A trade secret is a formula, practice, process, design, instrument, pattern, commercial method, or compilation of information not generally known or reasonably ascertainable by others by which a business can obtain an economic advantage over competitors or customers.
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Usability
Usability is the ease of use and learnability of a human-made object such as a tool or device.
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Voltmeter
A voltmeter is an instrument used for measuring electrical potential difference between two points in an electric circuit.
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Water quality
Water quality refers to the chemical, physical, biological, and radiological characteristics of water.
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Redirects here:
PH electrode, PH probe, PH-meter, Ph electrode, Ph meter.
References
[1] https://en.wikipedia.org/wiki/PH_meter
