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  2. Concentrate - Wikipedia

    en.wikipedia.org/wiki/Concentrate

    A concentrate is a form of substance that has had the majority of its diluting agent or diluent (in the case of a liquid: the solvent) removed, such that the substance becomes the majority of the composition.

  3. Fractional freezing - Wikipedia

    en.wikipedia.org/wiki/Fractional_freezing

    Fractional freezing is a process used in process engineering and chemistry to separate substances with different melting points. It can be done by partial melting of a solid, for example in zone refining of silicon or metals, or by partial crystallization of a liquid, as in freeze distillation, also called normal freezing or progressive freezing.

  4. Reduction (cooking) - Wikipedia

    en.wikipedia.org/wiki/Reduction_(cooking)

    While reduction does concentrate the flavors left in the pan, reducing too much will decrease the amount of all liquid in the sauce, leaving a sticky, burnt coating on the pan. [2] Sauces, ranging from basic brown sauce to béchamel sauce and even tomato sauce, are simmered for long periods (from 1 to 10 hours) but not boiled. Simmering not ...

  5. Dilution ratio - Wikipedia

    en.wikipedia.org/wiki/Dilution_ratio

    The "dilution factor" is an expression which describes the ratio of the aliquot volume to the final volume. Dilution factor is a notation often used in commercial assays.

  6. Dilution (equation) - Wikipedia

    en.wikipedia.org/wiki/Dilution_(equation)

    The basic room purge equation can be used only for purge scenarios. In a scenario where a liquid continuously evaporates from a container in a ventilated room, a differential equation has to be used:

  7. This Is Why Grandma Always Used Frozen Orange Juice ... - AOL

    www.aol.com/why-grandma-always-used-frozen...

    Frozen orange juice concentrate was introduced in 1945 when USDA scientists revealed a method to remove the liquid from fresh orange juice, creating a concentrate.

  8. Concentration - Wikipedia

    en.wikipedia.org/wiki/Concentration

    In chemistry, concentration is the abundance of a constituent divided by the total volume of a mixture. Several types of mathematical description can be distinguished: mass concentration, molar concentration, number concentration, and volume concentration. [1]

  9. Solid-phase extraction - Wikipedia

    en.wikipedia.org/wiki/Solid-phase_extraction

    Solid-phase extraction (SPE) [1] is a solid-liquid extractive technique, by which compounds that are dissolved or suspended in a liquid mixture are separated, isolated or purified, from other compounds in this mixture, according to their physical and chemical properties. Analytical laboratories use solid phase extraction to concentrate and ...