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Analytical chemistry

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Analytical chemistry


Chemistry; Analytical chemistry

The space provided above the resin bed in an ion-exchange column to allow for expansion of the bed during backwashing.

calibration reference

Chemistry; Analytical chemistry

Any of the standards of various types that indicate whether an analytical instrument or procedure is working within prescribed limits; examples are test solutions used with pH meters, and solutions ...

relative stability test

Chemistry; Analytical chemistry

A color test using methylene blue that indicates when the oxygen present in a sewage plant’s effluent or polluted water is exhausted.

fusion tube

Chemistry; Analytical chemistry

Device used for the analysis of the elements in a compound by fusing them with another compound; for example, analysis of nitrogen in organic compounds by fusing the compound with sodium and ...


Chemistry; Analytical chemistry

In chromatography, a measurement used in ion-exchange systems to express the adsorption ability of the ion-exchange materials.


Chemistry; Analytical chemistry

The formation of a faithful mold or replica of a solid that is thin enough for penetration by an electron microscope beam; can use plastic (such as collodion) or vacuum deposition (such as of carbon ...

gas analysis

Chemistry; Analytical chemistry

Analysis of the constituents or properties of a gas (either pure or mixed); composition can be measured by chemical adsorption, combustion, electrochemical cells, indicator papers, chromatography, ...

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