- One of a family of optical brightening agents that have been used with some degree of success in watertracing experiments. It has no color, but is readily detected by its distinctive fluorescence under ultra-violent light .
A Lexicon of Cave and Karst Terminology with Special Reference to Environmental Karst Hydrology. Courtesy of the author & The Karst Waters Institute. 2002.
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water tracing — Underground drainage links through unexplored caves confirmed by labeling input water and identifying it at points downstream. The common labeling techniques involve the use of fluorescent dyes (fluorescein, rhodamine, leucophor, pyranine… … Lexicon of Cave and Karst Terminology