Analytical chemistry

Analytical chemistry

Industry: Chemistry

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Analytical chemistry

Adsorption chromatography

Chemistry; Analytical chemistry

Separation of a chemical mixture (gas or liquid) by passing it over an adsorbent bed which adsorbs different compounds at different rates.

Photoelectric absorption analysis

Chemistry; Analytical chemistry

Type of activation analysis in which the _-photon gives all of its energy to an electron in the crystal under analysis, generating a maximum-sized pulse for that particular _-energy.

Double-blind sample

Chemistry; Analytical chemistry

In chemical analysis, a sample submitted in such a way that neither its composition nor its identification as a cheque sample is known to the analyst.

Adsorption indicator

Chemistry; Analytical chemistry

An indicator used in solutions to detect slight excess of a substance or ion; precipitate becomes coloured when the indicator is adsorbed. An example is fluorescein.

Photoelectric colorimetry

Chemistry; Analytical chemistry

Measurement of the colourant 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 utilises the ability of biological molecules to bend to certain ligands specifically and reversibly; used in protein biochemistry.