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Analytical chemistry
Industry: Chemistry
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Analytical chemistry
adsorption indicator
Chemistry; Analytical chemistry
An indicator used in solutions to detect slight excess of a substance or ion; precipitate becomes colored when the indicator is adsorbed. An example is fluorescein.
photoelectric colorimetry
Chemistry; Analytical chemistry
Measurement of the colorant concentration in a solution by means of the tristimulus values of three primary light filter-photocell combinations.
dry point
Chemistry; Analytical chemistry
The temperature at which the last drop of liquid evaporates from the bottom of the flask.
affinity chromatography
Chemistry; Analytical chemistry
A chromatographic technique that utilizes the ability of biological molecules to bend to certain ligands specifically and reversibly; used in protein biochemistry.
photometric titration
Chemistry; Analytical chemistry
A titration in which the titrant and solution cause the formation of a metal complex accompanied by an observable change in light absorbance by the titrated solution.
duplicate measurement
Chemistry; Analytical chemistry
An additional measurement made on the same (identical) sample of material to evaluate the variance in the measurement.
alkalimeter
Chemistry; Analytical chemistry
1. An apparatus for measuring the quantity of alkali in a solid or liquid. 2. An apparatus for measuring the quantity of carbon dioxide formed in a reaction.
