Abstract: Formulations of a cationic dye component (e.g., Azure A-Azure B-Azure C mixtures), an anionic dye component (e.g., Eosin Y) and an alcohol solvent (e.g., methanol or methanol-glycerol mixtures) are stabilized by an amino acid or its acid addition salt (e.g. lysine hydrochloride or glycine or a mixture of these).

Abstract: A general purpose scintillation cocktail comprises an aromatic liquid capable of capturing energy from radiation, at least one fluor compound, and a nonionic liquid surfactant comprised of polyethoxylated polyoxyethylene in which the weight percent of the polyoxyethylene in the molecule exceeds about 40 and in which the molecular weight of the polyoxypropylene portion of the molecule exceeds about 1450.

Abstract: A liquid scintillation composition especially useful for gradient elution chromatography comprising an aromatic liquid capable of capturing energy from radiation by radio-tagged compositions, at least one fluor, at least one low molecular weight alcohol and a surfactant comprising a polyoxyalkylene unit and a straight chain alkyl unit. Preferably, the surfactant comprises an ethoxylated or propoxylated fatty alcohol or fatty acid in which the moles of ethylene or propylene oxide range from 5 to 25 and the length of the alkyl chain is between 6 and 20 carbon atoms.