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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 
particle-induced x-ray emission
Chemistry; Analytical chemistry
A method of trace analysis in which a beam of ions is directed at a thin foil on which the sample to be analyzed has been deposited, and the energy spectrum of the resulting ...
derivative thermometric titration
Chemistry; Analytical chemistry
The use of a special resistance-capacitance network to record first and second derivatives of a thermometric titration curve (temperature versus weight change upon heating) to ...
washing
Chemistry; Analytical chemistry
1. In the purification of a laboratory sample, the cleaning of residual liquid impurities from precipitates by adding washing solution to the precipitates, mixing, then decanting, ...
particle-scattering factor
Chemistry; Analytical chemistry
Factor in light-scattering equations used to compensate for the loss in scattered light intensity caused by destructive interference during the analysis of macromolecular ...
descending chromatography
Chemistry; Analytical chemistry
A type of paper chromatography in which the sample-carrying solvent mixture is fed to the top of the developing chamber, being separated as it works downward.
water absorption tube
Chemistry; Analytical chemistry
A glass tube filled with a solid absorbent (calcium chloride or silica gel) to remove water from gaseous streams during or after chemical analyses.
automatic titrator
Chemistry; Analytical chemistry
1. Titration with quantitative reaction and measured flow of reactant. 2. Electrically generated reactant with potentiometric, ampherometric, or colorimetric end-point or ...
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