Ermittlung von Absorptionskoeffizienten aus den Photo-Akustik-Phasenwinkel-Spektren. (German)

It is shown that complete absorption spectra can be derived from PA phase-angle spectra: Β-values estimated in this way are in good qualitative accordance with those measured photometrically. The advantage of PAS as against conventional absorption spectroscopy is particularly obvious in investigating concentrated dye solutions, which because of the necessary thin layers can be measured by photometric methods only with limited accuracy. [ABSTRACT FROM AUTHOR]
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