Chemical warfare agent detection with fluorescent reagent

摘要

Detection of chemical warfare agent(s) (I) involves the use of a fluorescent reagent (II), the fluorescent emission of which changes in contact with (I). The novel features are that, for (II): a) the values of the log of the acid constant in the electronic ground state and in the excited state capable of emiss-ion differ by more than 2; b) the emission wavelength of the pro-tolytic form in an organic solvent is different from that in water; and c) (II) is dissolved or dispersed in a solvent with which (I) is immiscible.(II) is highly soluble in organic solvents and forms only a disp-ersion of undissolved solid in water. The solvent or dispersant used is a hardly flammable mixt. of water with max. 20% organic solvent, which is 1 x 10-3 to 1 x 10-2M in (II). (II) pref. is 6-aminoquinoline (IIA), 'Fluorol 086' (RTM; 2-butyl-6-butylamino-2,3- dihydro-1H-benz(de) isoaquinolin-1,3-dione, (IIB)) or Fluorol 088' (RTM; 2,8-dimethyl- naephtho(3,2,1-k1)xanthene)