Narrow line sources are advantageous due to the simple fact that they add selectivity to the technique. If a very narrow line of a specific compound is emitted, there is a good chance that only the element that you are trying to determine will absorb that line and, therefore, you will avoid an erroneous signal due to absorption of radiation by concomitants in the atomizer, such as atoms of other elements or molecules. With that, you can also use a low or medium resolution monochromator, which will have the sole function of isolating the line of interest from other lines emitted by the source. Therefore, instruments can be simpler and, consequently, cheaper. That is basically it...
The state-of-the-art in atomic absorption spectrometry, however, consists of instruments that use continuum sources, where a single source emits radiation in all range usually used in AAS. But modifications in the instrument were necessary for that, such as the use of a high-resolution monochromator and a CCD detector. Hope that helps...
Atomic absorption spectroscopy is used by chemists, environmental scientists, and researchers to detect and quantify the concentration of metallic elements in a sample. Industries such as pharmaceuticals, agriculture, and metallurgy also rely on atomic absorption spectroscopy for quality control and regulatory compliance.
Spectral interference is more common in atomic emission spectroscopy due to overlapping spectral lines.
Atomic absorption spectroscopy typically has a lower detection limit compared to atomic emission spectroscopy because it measures the amount of light absorbed by atoms in a sample, which is more sensitive at low concentrations. Atomic emission spectroscopy, on the other hand, measures the intensity of light emitted by atoms, which can be affected by background noise and matrix effects, leading to a higher detection limit.
There are lots of ways. Atomic absorption spectroscopy comes to mind.
Both flame emission and atomic absorption spectroscopy are analytical techniques used to determine the concentration of elements in a sample. The main similarity is that they both rely on the excitation of atoms in the sample to emit or absorb specific wavelengths of light. The main difference is that in flame emission spectroscopy, the intensity of emitted light is measured, while in atomic absorption spectroscopy, the amount of light absorbed by the atoms is measured.
Atomic absorption spectroscopy is used by chemists, environmental scientists, and researchers to detect and quantify the concentration of metallic elements in a sample. Industries such as pharmaceuticals, agriculture, and metallurgy also rely on atomic absorption spectroscopy for quality control and regulatory compliance.
Spectral interference is more common in atomic emission spectroscopy due to overlapping spectral lines.
Atomic absorption spectroscopy typically has a lower detection limit compared to atomic emission spectroscopy because it measures the amount of light absorbed by atoms in a sample, which is more sensitive at low concentrations. Atomic emission spectroscopy, on the other hand, measures the intensity of light emitted by atoms, which can be affected by background noise and matrix effects, leading to a higher detection limit.
William John Price has written: 'Spectrochemical analysis by atomic absorption' -- subject(s): Atomic absorption spectroscopy
Ted Hadeishi has written: 'Zeeman atomic absorption spectrometry' -- subject(s): Atomic absorption spectroscopy, Zeeman effect
Mainly it is used for soil analysis and water analysis.
There are lots of ways. Atomic absorption spectroscopy comes to mind.
Both flame emission and atomic absorption spectroscopy are analytical techniques used to determine the concentration of elements in a sample. The main similarity is that they both rely on the excitation of atoms in the sample to emit or absorb specific wavelengths of light. The main difference is that in flame emission spectroscopy, the intensity of emitted light is measured, while in atomic absorption spectroscopy, the amount of light absorbed by the atoms is measured.
D. C Girvin has written: 'On-line Zeeman atomic absorption spectroscopy for mecury analysis in oil shale gases' -- subject(s): Mercury, Atomic absorption spectroscopy, Air, Analysis, Pollution
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Atomic absorption spectroscopy works by passing a light beam through a sample containing the element of interest. The atoms in the sample absorb specific wavelengths of light, which are then measured to determine the concentration of the element in the sample.
Gae Ho Lee has written: 'Sample entraining multi-electrode plasma sources for atomic emission spectroscopy' -- subject(s): Atomic emission spectroscopy, Plasma spectroscopy