Analytical chemistry

Analytical chemistry

Industry: Chemistry

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Analytical chemistry

Collodion replication

Chemistry; Analytical chemistry

Production of a faithful collodion-film mould of a specimen surface (for example, powders, bones, microorganisms, crystals) which is sufficiently thin to be studied by electron microscopy.

Steady-state distribution

Chemistry; Analytical chemistry

The equilibrium condition between phases in each step of a multistage, countercurrent liquid-liquid extraction. Abbreviated SSD.

Liquid chromatography

Chemistry; Analytical chemistry

A form of chromatography employing a liquid as the moving phase and a solid or a liquid on a solid support as the stationary phase; techniques include column chromatography, gel permeation ...

Colour comparator

Chemistry; Analytical chemistry

A photoelectric instrument that compares an unknown colour with that of a standard colour sample for matching purposes. Also known as photoelectric colour comparator.

Stripping analysis

Chemistry; Analytical chemistry

An analytic process of solutions or concentrations containing ions, in which the ions are electrodeposited onto an electrode, stripped (dissolved) from the material from the electrode, and weighed.

Lot

Chemistry; Analytical chemistry

A specimen of bulk material that is to undergo chemical analysis.

Colorimeter

Chemistry; Analytical chemistry

A device for measuring concentration of a known constituent in solution by comparison with colours of a few solutions of known concentration of that constituent. Also known as chromometer.