THE SELECTIVE AFFINITY OF ANIONIC DETERGENTS FOR ELASTICA - A NEW STAIN FOR ELASTICA

[摘要] Sulfonated and sulfated anionic detergents have a selective affinity for elastica. The combination of elastica with detergent leaves a free sulfonate or sulfate radical which precipitates with basic dyes thereby imparting a selective stain to elastica. Sulfate or sulfonate radicals artificially added to elastica do not induce metachromasia of toluidine blue or thionine.