Fig. 7

Sign of effective parameters on absorption, fluorescence: (a) all dyes in organic solvents, (b) Ponceau 4R in LCs, (c) Sunset Yellow FCF in LCs, (d) Tartrazine in LCs.

Sign of effective parameters on absorption, fluorescence: (a) all dyes in organic solvents, (b) Ponceau 4R in LCs, (c) Sunset Yellow FCF in LCs, (d) Tartrazine in LCs.