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Analytical chemistry
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Analytical chemistry
spiral wire column
Chemistry; Analytical chemistry
An analytical rectification (distillation) column with a wire spiral the length of the inside of the column to serve as a liquid-vapor contact surface.
isotope-dilution analysis
Chemistry; Analytical chemistry
Variation on paper-chromatography analysis; a labeled radioisotope of the same type as the one being quantitated is added to the solution, then quantitatively analyzed afterward via radioactivity ...
circular paper chromatography
Chemistry; Analytical chemistry
A paper chromatographic technique in which migration from a spot in the sheet takes place in 360_ so that zones separate as a series of concentric rings.
spot test
Chemistry; Analytical chemistry
The addition of a drop of reagent to a drop or two of sample solution to obtain distinctive colors or precipitates; used in qualitative analysis.
kauri-butanol value
Chemistry; Analytical chemistry
The measure of milliliters of paint or varnish petroleum thinner needed to cause cloudiness in a solution of kauri gum in butyl alcohol.
standardization
Chemistry; Analytical chemistry
A process in which the value of a potential standard is fixed by a measurement made with respect to a standard whose value is known.
