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  2. Atomic absorption spectroscopy - Wikipedia

    en.wikipedia.org/wiki/Atomic_absorption_spectroscopy

    In fact, any increase or decrease in radiation intensity that is observed to the same extent at all pixels chosen for correction is eliminated by the correction algorithm. [citation needed] This obviously also includes a reduction of the measured intensity due to radiation scattering or molecular absorption, which is corrected in the same way ...

  3. Metallic bonding - Wikipedia

    en.wikipedia.org/wiki/Metallic_bonding

    Metallic bonding is a type of chemical bonding that arises from the electrostatic attractive force between conduction electrons (in the form of an electron cloud of delocalized electrons) and positively charged metal ions.

  4. pH - Wikipedia

    en.wikipedia.org/wiki/PH

    In chemistry, pH (/ p iː ˈ eɪ tʃ / pee-AYCH), also referred to as acidity or basicity, historically denotes "potential of hydrogen" (or "power of hydrogen"). [1] It is a logarithmic scale used to specify the acidity or basicity of aqueous solutions.

  5. Pigment violet 23 - Wikipedia

    en.wikipedia.org/wiki/Pigment_violet_23

    Pigment violet 23 is an organic compound that is a commercial pigment.It is member of the dioxazine family of heterocyclic compounds, but derived from carbazoles. [1] It is prepared by condensation of chloranil and 3-amino-N-ethylcarbazole.

  6. Prism (optics) - Wikipedia

    en.wikipedia.org/wiki/Prism_(optics)

    Prism spectacles with a single prism perform a relative displacement of the two eyes, thereby correcting eso-, exo, hyper- or hypotropia. In contrast, spectacles with prisms of equal power for both eyes, called yoked prisms (also: conjugate prisms, ambient lenses or performance glasses) shift the visual field of both eyes to the same extent. [5]

  7. AOL

    login.aol.com/?lang=en-gb&intl=uk

    Sign in to AOL Mail, a free and secure email service with advanced settings, mobile access, and personalized compose. Get live help from AOL experts if needed.

  8. Ultraviolet–visible spectroscopy - Wikipedia

    en.wikipedia.org/wiki/Ultraviolet–visible...

    An example of a UV/Vis readout. UV/Vis can be used to monitor structural changes in DNA. [8]UV/Vis spectroscopy is routinely used in analytical chemistry for the quantitative determination of diverse analytes or sample, such as transition metal ions, highly conjugated organic compounds, and biological macromolecules.

  9. Correction fluid - Wikipedia

    en.wikipedia.org/wiki/Correction_fluid

    Correction pen. A correction fluid is an opaque, usually white fluid applied to paper to mask errors in text. Once dried, it can be handwritten or handdrawn upon. It is typically packaged in small bottles, with lids attached to brushes (or triangular pieces of foam) that dip into the fluid.