1976
DOI: 10.1021/ac60367a008
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Inexpensive, wavelength-modulated filter flame photometer

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Cited by 18 publications
(11 citation statements)
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“…Interference-filter photometers have long been employed in other areas of optical imaging, in part because of their high optical throughput. 11,12 An important characteristic of these components is that tilting the filter (adjusting the angle of incidence) allows the bandpass of the filter to be tuned over a limited spectral range. This approach is well suited for atomic spectrometry in which the atomic line used for analysis is much narrower than the bandpass of the filter.…”
Section: Introductionmentioning
confidence: 99%
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“…Interference-filter photometers have long been employed in other areas of optical imaging, in part because of their high optical throughput. 11,12 An important characteristic of these components is that tilting the filter (adjusting the angle of incidence) allows the bandpass of the filter to be tuned over a limited spectral range. This approach is well suited for atomic spectrometry in which the atomic line used for analysis is much narrower than the bandpass of the filter.…”
Section: Introductionmentioning
confidence: 99%
“…This derivative spectrum can be nearly background-free as long as the background is flat over the tunable range of the filter. 12 An alternative approach is demonstrated here and employed to map the location of an element of interest on the surface of a sample and to flag the presence of a spectral interference. In this approach, the optical aperture of the spectroscopic system is limited by the size of the filter, rather than by a slit assembly, as has been used in most other techniques for glow-discharge imaging, which results in much greater optical throughput.…”
Section: Introductionmentioning
confidence: 99%
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