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Analytical chemistry
Industry: Chemistry
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Analytical chemistry
Mobile phase
Chemistry; Analytical chemistry
1. In liquid chromatography, the phase that is moving in the bed, including the fraction of the sample held by this phase. 2. The carrier gas in a gas chromatography procedure.
Complexometric titration
Chemistry; Analytical chemistry
A technique of volumetric analysis in which the formation of a coloured complex is used to indicate the end point of a titration. Also known as chelatometry. Also spelled compleximetric titration.
Tolerance interval
Chemistry; Analytical chemistry
That range of values within which it has been calculated that a specified percentage of individual values of measurements will lie with a stated confidence level.
Molecular amplitude
Chemistry; Analytical chemistry
The difference between the molecular rotation at the extreme (peak or trough) value caused by the longer light wavelength and the molecular rotation at the extreme value caused by the shorter ...
Composite sample
Chemistry; Analytical chemistry
A sample comprising two or more increments selected to represent the material being analyzed.
Trace analysis
Chemistry; Analytical chemistry
Analysis of a very small quantity of material of a sample by such techniques as polarography or spectroscopy.
Moving-boundary electrophoresis
Chemistry; Analytical chemistry
A U-tube variation of electrophoresis analysis that uses buffered solution so that all ions of a given species move at the same rate to maintain a sharp, moving front (boundary).
