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  2. Accelerated solvent extraction - Wikipedia

    en.wikipedia.org/wiki/Accelerated_solvent_extraction

    The extraction cell is filled with the solid sample to be examined and placed in a temperature-controllable oven. After adding the solvent, the cell is heated at constant pressure (adjustable between 0.3 and 20 MPa) up to a maximum temperature of 200°C and kept at constant conditions for a while so that equilibrium can be established.

  3. Aqueous two-phase system - Wikipedia

    en.wikipedia.org/wiki/Aqueous_two-phase_system

    Aqueous biphasic systems (ABS) or aqueous two-phase systems (ATPS) are clean alternatives for traditional organic-water solvent extraction systems.. ABS are formed when either two polymers, one polymer and one kosmotropic salt, or two salts (one chaotropic salt and the other a kosmotropic salt) are mixed at appropriate concentrations or at a particular temperature.

  4. Supercritical fluid extraction - Wikipedia

    en.wikipedia.org/wiki/Supercritical_fluid_extraction

    In larger systems a back pressure regulator will be used, which maintains pressure upstream of the regulator by means of a spring, compressed air, or electronically driven valve. Whichever is used, heating must be supplied, as the adiabatic expansion of the CO 2 results in significant cooling. This is problematic if water or other extracted ...

  5. Pfister (firm) - Wikipedia

    en.wikipedia.org/wiki/Pfister_(firm)

    Pfister, called Price Pfister until 2010, is an American manufacturer of bathroom and lavatory faucets, shower systems, showerheads and accessories, kitchen faucets and other plumbing fixtures. Emil Price and William Pfister founded the company in 1910.

  6. Solid-phase extraction - Wikipedia

    en.wikipedia.org/wiki/Solid-phase_extraction

    A vacuum port with gauge is used to control the vacuum applied to the chamber. 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 ...

  7. What to know about after-Christmas sales from Amazon ... - AOL

    www.aol.com/news/know-christmas-sales-amazon...

    The home improvement chain is offering up to 30% off select major appliances until January 8, 2025, as well as 30% off on some holiday storage items. It's also offering up to 40% off lights and ...

  8. Liquid–liquid extraction - Wikipedia

    en.wikipedia.org/wiki/Liquid–liquid_extraction

    A separatory funnel used for liquid–liquid extraction, as evident by the two immiscible liquids.. Liquid–liquid extraction, also known as solvent extraction and partitioning, is a method to separate compounds or metal complexes, based on their relative solubilities in two different immiscible liquids, usually water (polar) and an organic solvent (non-polar).

  9. 10 Old Tech Gadgets Worth a Pretty Penny Today

    www.aol.com/10-old-tech-gadgets-worth-140005518.html

    While used units start around $70, those in mint condition or with original packaging can command prices upwards of $2,000, especially among retro gaming enthusiasts. 4. Atari 2600