Types and Applications of Spectrometry Assignment Paper
Types and Applications of Spectrometry Assignment Paper
Types and Applications of Spectrometry: UV-Visible Spectroscopy:
UV-visible spectroscopy investigates the interactions between ultraviolet or visible electromagnetic radiation and matter. Ultraviolet and visible spectroscopy (UV-vis) is a reliable and accurate analytical laboratory assessment procedure that allows for the analysis of a substance. Specifically, ultraviolet and visible spectroscopy measures the absorption, transmission and emission of ultraviolet and visible light wavelengths by matter.Types and Applications of Spectrometry Assignment Paper
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UV-visible spectroscopic measurements provide precise information about atomic and molecular structure. It consists of light of several colors ranging from violet to red. This is now termed the UV-visible electromagnetic spectrum. The ultraviolet and visible regions of the electromagnetic spectrum are linked in UV-vis spectroscopy because similarities between the two regions allow many of the same research techniques and tools to be used for both regions. The ultraviolet region (about 450-200 nm) is particularly important for the qualitative and quantitative determination of many organic compounds. In the visible region (about 450-700 nm), spectrophotometric methods are widely used for the quantitative determination of many trace substances, especially inorganic species.Types and Applications of Spectrometry Assignment Paper
Special instrumentation is used in UV-vis spectroscopy. Hydrogen or deuterium lights provide the source of light for ultraviolet measurements. Tungsten lamps provide the light for visible measurements. These light sources generate light at specific wavelengths. Deuterium lamps generate light in the UV range (190 to 380nm). Tungsten-halogen lamps generate light in the visible spectrum (380 to about 800 nm).Xenon lamps which can produce light in the UV and visible portions of the spectrum are used to measure both UV and visible spectra.Types and Applications of Spectrometry Assignment Paper
Uses:
Uv/Vis Spectrophotometry is used to determine the absorption or transmission of Uv/Vis light (180 to 820 nm) by a sample. It can also be used to measure concentrations of absorbing materials based on developed calibration curves of the material. It is routinely used in the quantitative determination of solutions of transition metal ions and highly conjugated organic compounds. Its main applications are;Types and Applications of Spectrometry Assignment Paper
- Quantitative determination of chromophores concentrations in solution
- Impurity determination by spectrum subtraction
- Determination of reaction kinetics
Types and Applications of Spectrometry Assignment Paper