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  2. Atomic emission spectroscopy - Wikipedia

    en.wikipedia.org/wiki/Atomic_emission_spectroscopy

    Atomic emission spectroscopy (AES) is a method of chemical analysis that uses the intensity of light emitted from a flame, plasma, arc, or spark at a particular wavelength to determine the quantity of an element in a sample.

  3. Emission spectrum - Wikipedia

    en.wikipedia.org/wiki/Emission_spectrum

    Emission spectroscopy is a spectroscopic technique which examines the wavelengths of photons emitted by atoms or molecules during their transition from an excited state to a lower energy state. Each element emits a characteristic set of discrete wavelengths according to its electronic structure , and by observing these wavelengths the elemental ...

  4. List of chemical analysis methods - Wikipedia

    en.wikipedia.org/wiki/List_of_chemical_analysis...

    Optical emission spectroscopy; Optical rotation (OR) P. Particle induced X-ray emission spectroscopy (PIXE) Pyrolysis gas chromatography mass spectrometry (PY-GC-MS)

  5. Flame test - Wikipedia

    en.wikipedia.org/wiki/Flame_test

    The nature of the excited and ground states depends only on the element. Ordinarily, there are no bonds to be broken, and molecular orbital theory is not applicable. The emission spectrum observed in flame test is also the basis of flame emission spectroscopy, atomic emission spectroscopy, and flame photometry. [4] [13]

  6. Photoelectric flame photometer - Wikipedia

    en.wikipedia.org/wiki/Photoelectric_flame_photometer

    Flame photometry is a type of atomic emission spectroscopy. It is also known as flame emission spectroscopy. [1] [2] A photoelectric flame photometer is an instrument used in inorganic chemical analysis to determine the concentration of certain metal ions, among them sodium, potassium, lithium, and calcium. [3]

  7. Elemental analysis - Wikipedia

    en.wikipedia.org/wiki/Elemental_analysis

    To qualitatively determine which elements exist in a sample, the methods are mass spectrometric atomic spectroscopy, such as inductively coupled plasma mass spectrometry, which probes the mass of atoms; other spectroscopy, which probes the inner electronic structure of atoms such as X-ray fluorescence, particle-induced X-ray emission, X-ray ...

  8. Today’s NYT ‘Strands’ Hints, Spangram and Answers ... - AOL

    www.aol.com/today-nyt-strands-hints-spangram...

    Related: 300 Trivia Questions and Answers to Jumpstart Your Fun Game Night What Is Today's Strands Hint for the Theme: "Moonlighting"? Today's Strands game revolves around different stages/shapes ...

  9. Spectral line ratios - Wikipedia

    en.wikipedia.org/wiki/Spectral_line_ratios

    The analysis of line intensity ratios is an important tool to obtain information about laboratory and space plasmas. In emission spectroscopy, the intensity of spectral lines can provide various information about the plasma (or gas) condition. It might be used to determine the temperature or density of the plasma. Since the measurement of an ...