Chemistry

Chemistry

A branch of physical science that is concerned with the study of matter and energy and how they interact.

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Chemistry > Analytical chemistry

capillary zone electrophoresis

Chemistry; Analytical chemistry

A type of capillary electrophoresis in which the capillary is filled with a homogenous buffer, and compounds are separated on the basis of their relative charge and size.

rotating platinum electrode

Chemistry; Analytical chemistry

Platinum wire sealed in a soft-glass tubing and rotated by a constant-speed motor; used as the electrode in amperometric titrations. Abbreviated RPE.

gas-solid chromatography

Chemistry; Analytical chemistry

A form of gas chromatography in which the moving phase is a gas and the stationary phase is a surface-active sorbent (charcoal, silica gel, or activated alumina). Abbreviated GSC.

carbon dioxide absorption tube

Chemistry; Analytical chemistry

An absorbent-packed tube used to capture the carbon dioxide formed during the microdetermination of carbon-hydrogen by the Pragl combustion procedure.

salt error

Chemistry; Analytical chemistry

An error introduced in an analytical determination of a saline liquid such as sea water; caused by the effect of the neutral ions in the solution on the color of the pH indicator, ...

gel filtration

Chemistry; Analytical chemistry

A type of column chromatography which separates molecules on the basis of size; higher-molecular-weight substances pass through the column first. Also known as molecular exclusion ...