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  2. Mass spectrometry - Wikipedia

    en.wikipedia.org/wiki/Mass_spectrometry

    Mass spectrometry (MS) is an analytical technique that is used to measure the mass-to-charge ratio of ions.The results are presented as a mass spectrum, a plot of intensity as a function of the mass-to-charge ratio.

  3. Neodymium nitrate - Wikipedia

    en.wikipedia.org/wiki/Neodymium_nitrate

    Neodymium nitrate is an inorganic compound with the formula Nd(NO 3) 3 ·(x(H 2 O). It is typically encountered as the hexahydrate, Nd(NO 3) 3 ·6H 2 O, which is more accurately formulated as [Nd(NO 3) 3 (H 2 O) 4].2H 2 O to reflect the crystal structure. [1] It decomposes to NdONO 3 at elevated temperature. [2]

  4. Spectrophotometry - Wikipedia

    en.wikipedia.org/wiki/Spectrophotometry

    Spectrophotometry is a tool that hinges on the quantitative analysis of molecules depending on how much light is absorbed by colored compounds.

  5. Darcy (unit) - Wikipedia

    en.wikipedia.org/wiki/Darcy_(unit)

    The darcy is referenced to a mixture of unit systems. A medium with a permeability of 1 darcy permits a flow of 1 cm 3 /s of a fluid with viscosity 1 cP (1 mPa·s) under a pressure gradient of 1 atm/cm acting across an area of 1 cm 2.

  6. Spectroscopy - Wikipedia

    en.wikipedia.org/wiki/Spectroscopy

    Spectroscopy is a branch of science concerned with the spectra of electromagnetic radiation as a function of its wavelength or frequency measured by spectrographic equipment, and other techniques, in order to obtain information concerning the structure and properties of matter. [4]

  7. Nucleic acid quantitation - Wikipedia

    en.wikipedia.org/wiki/Nucleic_acid_quantitation

    Optical density of ribosome sample. The important wavelengths of 260nm and 280nm are labeled. In molecular biology, quantitation of nucleic acids is commonly performed to determine the average concentrations of DNA or RNA present in a mixture, as well as their purity.

  8. Titanium-sapphire laser - Wikipedia

    en.wikipedia.org/wiki/Titanium-sapphire_laser

    Part of a Ti:sapphire oscillator. The Ti:sapphire crystal is the bright red light source on the left. The green light is from the pump diode. Titanium-sapphire lasers (also known as Ti:sapphire lasers, Ti:Al 2 O 3 lasers or Ti:sapphs) are tunable lasers which emit red and near-infrared light in the range from 650 to 1100 nanometers.

  9. Neodymium-doped yttrium orthovanadate - Wikipedia

    en.wikipedia.org/wiki/Neodymium-doped_yttrium...

    Neodymium-doped yttrium orthovanadate (Nd:YVO 4) is a crystalline material formed by adding neodymium ions to yttrium orthovanadate. It is commonly used as an active laser medium for diode-pumped solid-state lasers. It comes as a transparent blue-tinted material. It is birefringent, therefore rods made of it are usually rectangular.

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