Absorption: The process in which incident radiant energy is retained by a substance. The absorbed radiation is then transformed into molecular energy.
Absorption Spectrum: A plot that shows how much radiation a substance absorbs at different wavelengths. Absorption spectra are unique for each element and compound and they are often used as chemical 'fingerprin . . . View Full Definition
Absorption Rate: The total number of vacant square feet of office space divided by the square footage leased per year historically. Used to analyze demand of office space in a given market area.
Reabsorption: The return to the blood of most of the water, sodium, amino acids, and sugar that were removed during filtration; occurs mainly in the proximal tubule of the nephron.
Absorption Spectroscopy: A technique for determining the concentration and structure of a substance by measuring the amound of electromagnetic radiation the sample absorbs at various wavelengths.
Specific Absorption Rate (SAR): A measure of the rate at which RF energy is absorbed by the body.
Molar Absorptivity: The absorbance per centimeter of path length when the concentration of absorbing material is 1 M; epsilon = A/(bc) where a, A, b, and c are the molar absorptivity, absorbance, path length in . . . View Full Definition
Path Length: In absorption spectroscopy, the length of a path taken by radiation through a sample.
Sorption: Assimilation of molecules of one substance by a material in a different phase. Adsorption (sorption on a surface) and absorption (sorption into bulk material) are two types of sorption phenomena.
Infrared Radiation: Electromagnetic radiation with wavelength longer than visible light but shorter than that of microwaves. Infrared radiation is produced by hot objects; absorption of infrared radiation cause . . . View Full Definition