| This involves installing ISCO automatic water samplers at the hypothesized spring or springs. The collected samples are then analyzed on a Shimadzu spectrofluorophotometer RF
5301PC. This provides a graph of the complete dye breakthrough curve at the spring or springs. A quantitative trace is often performed simultaneously with the qualitative dye receptor trace. It provides more definitive proof of dye flow to a spring
since the dye concentration in the water is measured during the entire passage of the dye cloud as it flows from the spring. A quantitative trace is usually perform if there is a chance of litigation in the courts and/or if very important decisions are
to be made based on the results of the dye trace. |
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