Use of long-wavelength emitting cyanine compound as NIR fluorescence standard and kit for calibration of photoluminescence measurement systems

摘要

Use of asymmetric cyanine compounds (I) as near-infra red spectral fluorescence standard, is claimed. Use of asymmetric cyanine compounds of formula (I) as near-infra red spectral fluorescence standard, is claimed. B1, B2 : H, methyl, ethyl, phenyl, naphthyl, benzoxazole, benzimidazole, benzothiazole or indole residue; X-X3 : methyl, ethyl or phenyl; Z : N or C; and A -anion, where one or more hydrogen in (I) and the aforementioned radicals are optionally substituted. An independent claim is included for a kit for the traceable calibration of a photoluminescence system, preferably a fluorescence measurement system, comprising (I) as a fluorescent standard and a spectrally corrected fluorescence spectrum of the fluorescence standards in tabular form, in computer readable form and/or an indication of a website on which the corrected fluorescence spectrum is present. [Image].