Some Advances in Fluorometric Techniques for Water Tracing

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A common technique for ground water tracing uses continuous or discrete analysis of fluorescent tracer dyes to produce tracer breakthrough curves which can be analysed to determine ground water trajectory, velocity and dispersivity. Some fluorescent dyes are excellent tracers, but there remain significant constraints in fluorometry with respect to installation, control and data acquisition using standard filter fluorometers as well as with general analytical protocols. This paper identifies some of the constraints associated with the widely used Turner Designs Model 10 Series filter fluorometer and technical and operational solutions which can significantly improve the precision, accuracy and time resolution of tracer data.

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