23 Terms
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Analytical chemistry
Industry: Chemistry
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Analytical chemistry
Carbon number
Chemistry; Analytical chemistry
The number of carbon atoms in a material under analysis; plotted against chromatographic retention volume for compound identification.
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 colour of the pH indicator, and hence upon the ...
Laboratory sample
Chemistry; Analytical chemistry
A sample of a material to be tested or analysed that is prepared from a gross sample and retains the latter’s composition.
Coelute
Chemistry; Analytical chemistry
In chromatography, two or more chemical compounds that do not separate.
Standard reference material
Chemistry; Analytical chemistry
A reference material distributed and certified by the appropriate national institute for standardization.
