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Dulcamara means "bittersweet" (literally "sweet-bitter"). It can refer to: Solanum dulcamara, a plant; Dulcamara, a synonym and proposed section of the genus Solanum; Dulcamara, or the Little Duck and the Great Quack, an 1866 play by W. S. Gilbert; Dr. Dulcamara, a character in L'elisir d'amore, an opera by Gaetano Donizetti
The diluted material must be thoroughly mixed to achieve the true dilution. For example, in a solution with a 1:5 dilution ratio, entails combining 1 unit volume of solute (the material to be diluted) with 5 unit volumes of the solvent to give 6 total units of total volume. In photographic development, dilutions are normally given in a '1+x ...
Solanum dulcamara is a species of vine in the genus Solanum (which also includes the potato and the tomato) of the family Solanaceae.Common names include bittersweet, bittersweet nightshade, bitter nightshade, blue bindweed, Amara Dulcis, [3] climbing nightshade, [4] felonwort, fellenwort, felonwood, poisonberry, poisonflower, scarlet berry, snakeberry, [5] [6] [7] trailing bittersweet ...
Three main logarithmic dilution scales are in regular use in homeopathy. Hahnemann created the "centesimal" or "C scale", diluting a substance by a factor of 100 at each stage. There is also a decimal dilution scale (notated as "X" or "D") in which the preparation is diluted by a factor of 10 at each stage. [9]
A 3 He/ 4 He dilution refrigerator is a cryogenic device that provides continuous cooling to temperatures as low as 2 mK, with no moving parts in the low-temperature region. [ 1 ] [ 2 ] The cooling power is provided by the heat of mixing of the helium-3 and helium-4 isotopes.
Typically, ten-fold dilutions are used, and the dilution series is plated in replicates of 2 or 3 over the chosen range of dilutions. Often 100 μL are plated but also larger amounts up to 1 mL are used. Higher plating volumes increase drying times but often do not result in higher accuracy, since additional dilution steps may be needed. [5]
Logarithmic dilution. A serial dilution is the step-wise dilution of a substance in solution, either by using a constant dilution factor, or by using a variable factor between dilutions. If the dilution factor at each step is constant, this results in a geometric progression of the concentration in a logarithmic fashion.
Elution principle of column chromatography. In analytical and organic chemistry, elution is the process of extracting one material from another by washing with a solvent: washing of loaded ion-exchange resins to remove captured ions, or eluting proteins or other biopolymers from a gel electrophoresis or chromatography column.