Luminescent probe to investigate material absolute absorption

Войтович, А. П.; Калинов, В. С.; Малашкевич, Г. Е.; Runets, L. P.; Stupak, A. P.; Montereali, R. M.; Baldacchini, G.

doi:10.1016/j.optmat.2010.10.029

Optical Materials

2011

DOI: 10.1016/j.optmat.2010.10.029

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Luminescent probe to investigate material absolute absorption

А. П. Войтович

В. С. Калинов

Г. Е. Малашкевич

et al.

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“…In [5], methods are discussed for quantitative analysis of absorbing media based on measurements of the photoluminescence intensity in relative units, and not requiring references with known content of the components. They are extended to nonluminescent substances when a luminescent probe is introduced into the analyte medium [6]. The sensitivity of the methods [5,6] is close to the sensitivity of absorption measurements.…”

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“…They are extended to nonluminescent substances when a luminescent probe is introduced into the analyte medium [6]. The sensitivity of the methods [5,6] is close to the sensitivity of absorption measurements. Therefore it remains important to search for methods for analysis of absorbing media in which high sensitivity of luminescence measurements could be realized.…”

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Luminescent method for determining low concentrations of a substance in optically dense media

et al. 2011

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We have developed a method for quantitative luminescent analysis of multicomponent media. To carry out this method, we need to use a standard luminescent probe and have overlap between the luminescence excitation spectra of the probe and the analyte substance. We have shown that the method is applicable for analysis of scattering media with different absorption optical densities, including optically dense media. We have demonstrated that it is invariant relative to changes in the experimental geometry and the parameters of the medium. A broad range of measurable values is characteristic of the method. Its sensitivity is determined by the sensitivity of the luminescence intensity measurements. We have determined concentrations of organic substances in the range ~10 -10 to 10 -11 g/cm 3 .

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Luminescent method for determining low concentrations of a substance in optically dense media

et al. 2011

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Luminescent probe to investigate material absolute absorption

Cited by 1 publication

References 5 publications

Luminescent method for determining low concentrations of a substance in optically dense media

Luminescent method for determining low concentrations of a substance in optically dense media

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