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Analytical chemistry
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Analytical chemistry
Base-line technique
Chemistry; Analytical chemistry
A method for measurement of absorption peaks for quantitative analysis of chemical compounds in which a base line is drawn tangent to the spectrum background; the distance from the base line to the ...
Quantitative analysis
Chemistry; Analytical chemistry
The analysis of a gas, liquid, or solid sample or mixture to determine the precise percentage composition of the sample in terms of elements, radicals, or compounds.
Equilibrium still
Chemistry; Analytical chemistry
Recirculating distillation apparatus (no product withdrawal) used to determine vapor-liquid equilibria data.
Particle counting
Chemistry; Analytical chemistry
Microscopic or photomicrographic technique for the visual counting of the numbers of particles in a known quantity of a solid-liquid suspension.
Derivative polarography
Chemistry; Analytical chemistry
Polarography technique in which the rate of change of current with respect to applied potential is measured as a function of the applied potential (di/dE versus E, where i is current and E is applied ...
Wall-coated capillary column
Chemistry; Analytical chemistry
A capillary column characterised by a layer of stationary liquid coated directly on the inner wall of a coiled capillary tube.
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 analysed has been deposited, and the energy spectrum of the resulting x-rays is measured.