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Analytical chemistry
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Analytical chemistry
Vacuum thermobalance
Chemistry; Analytical chemistry
An instrument used in thermogravimetry consisting of a precision balance and furnace that have been adapted for continuously measuring or recording changes in weight of a substance as a function of ...
Paper chromatography
Chemistry; Analytical chemistry
Procedure for analysis of complex chemical mixtures by the progressive absorption of the components of the unknown sample (in a solvent) on a special grade of paper.
Cryoscopy
Chemistry; Analytical chemistry
A phase-equilibrium technique to determine molecular weight and other properties of a solute by dissolving it in a liquid solvent and then ascertaining the solvent’s freezing point.
Vapor-pressure osmometer
Chemistry; Analytical chemistry
A device for the determination of molecular weights by the decrease of vapour pressure of a solvent upon addition of a soluble sample.
Paper electrochromatography
Chemistry; Analytical chemistry
Variation of paper electrophoresis in which the electrolyte-impregnated absorbent paper is suspended vertically and the electrodes are connected to the sides of the paper, producing a current at ...
Cyclic chronopotentiometry
Chemistry; Analytical chemistry
An analytic electrochemical method in which instantaneous current reversal is imposed at the working electrode, and its potential is monitored with time.
Visual colorimetry
Chemistry; Analytical chemistry
A procedure for the determination of the colour of an unknown solution by visual comparison to colour standards (solutions or color-tinted disks).