Atomic Spectroscopy for Elemental Analysis
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Questions and Answers

What is the primary focus of Atomic Spectroscopy?

  • Analysis of organic compounds
  • Determination of molecular structures
  • Deals with the absorption and emission of radiation by atoms (correct)
  • Investigation of nuclear reactions

    • Which technique is used in Flame Atomic Absorption Spectroscopy (FAAS) to break molecules into gaseous atoms?

  • Graphite Furnace AAS
  • Hydride Generation AAS
  • Vapor Generation AAS
  • Atomization in a flame (correct)

    • What component in Flame Atomic Absorption Spectroscopy acts as the wavelength selector?

  • Atomizer (Nebulizer and Flame)
  • Source of radiation (HCL)
  • Detector
  • Monochromator (correct)

    • At what level are concentrations typically measured in Flame Atomic Absorption Spectroscopy (FAAS)?

    <p>Low mg/L (ppm)</p> Signup and view all the answers

    Which type of atoms absorb light from the source in Flame Atomic Absorption Spectroscopy?

    <p>Gaseous atoms</p> Signup and view all the answers

    What is the primary purpose of Atomic Spectroscopy?

    <p>Determination of the presence and concentrations of metals in the samples</p> Signup and view all the answers

    In Flame Atomic Absorption Spectroscopy (FAAS), what is the function of the monochromator?

    <p>Wavelength selector</p> Signup and view all the answers

    What is the source of radiation in Flame Atomic Absorption Spectroscopy (FAAS)?

    <p>HCL</p> Signup and view all the answers

    What is the principle work of Flame Atomic Absorption Spectroscopy?

    <p>Atomization of molecules into gaseous atoms</p> Signup and view all the answers

    Which component in Flame Atomic Absorption Spectroscopy (FAAS) is responsible for measuring concentrations at the low mg/L (ppm) level?

    <p>Detector</p> Signup and view all the answers

    Study Notes

    Atomic Spectroscopy

    • The primary focus of Atomic Spectroscopy is to identify and quantify the elemental composition of a sample.

    Flame Atomic Absorption Spectroscopy (FAAS)

    • The technique used in FAAS to break molecules into gaseous atoms is thermal decomposition.
    • The monochromator acts as the wavelength selector, separating the light into its component wavelengths.
    • Concentrations are typically measured at the low mg/L (ppm) level in FAAS.
    • The type of atoms that absorb light from the source in FAAS are ground-state atoms.
    • The primary purpose of FAAS is to quantify the concentration of a specific element in a sample.
    • The function of the monochromator in FAAS is to select the specific wavelength of light that corresponds to the energy transition of the analyte element.
    • The source of radiation in FAAS is a hollow cathode lamp, which emits light at a specific wavelength.
    • The principle work of FAAS is to measure the absorption of light by ground-state atoms in a sample.
    • The component responsible for measuring concentrations at the low mg/L (ppm) level in FAAS is the detector.

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    Description

    Test your knowledge about the principles and applications of atomic spectroscopy, a method used for the qualitative and quantitative analysis of elements through the absorption and emission of radiation by free atoms.

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