Search KARSTBASE:
KarstBase a bibliography database in karst and cave science.
Featured articles from Cave & Karst Science Journals
Characterization of minothems at Libiola (NW Italy): morphological, mineralogical, and geochemical study, Carbone Cristina; Dinelli Enrico; De Waele Jo
Chemistry and Karst, White, William B.
The karst paradigm: changes, trends and perspectives, Klimchouk, Alexander
Long-term erosion rate measurements in gypsum caves of Sorbas (SE Spain) by the Micro-Erosion Meter method, Sanna, Laura; De Waele, Jo; Calaforra, José Maria; Forti, Paolo
The use of damaged speleothems and in situ fault displacement monitoring to characterise active tectonic structures: an example from Zapadni Cave, Czech Republic , Briestensky, Milos; Stemberk, Josef; Rowberry, Matt D.;
Featured articles from other Geoscience Journals
Karst environment, Culver D.C.
Mushroom Speleothems: Stromatolites That Formed in the Absence of Phototrophs, Bontognali, Tomaso R.R.; D’Angeli Ilenia M.; Tisato, Nicola; Vasconcelos, Crisogono; Bernasconi, Stefano M.; Gonzales, Esteban R. G.; De Waele, Jo
Calculating flux to predict future cave radon concentrations, Rowberry, Matt; Marti, Xavi; Frontera, Carlos; Van De Wiel, Marco; Briestensky, Milos
Microbial mediation of complex subterranean mineral structures, Tirato, Nicola; Torriano, Stefano F.F;, Monteux, Sylvain; Sauro, Francesco; De Waele, Jo; Lavagna, Maria Luisa; D’Angeli, Ilenia Maria; Chailloux, Daniel; Renda, Michel; Eglinton, Timothy I.; Bontognali, Tomaso Renzo Rezio
Evidence of a plate-wide tectonic pressure pulse provided by extensometric monitoring in the Balkan Mountains (Bulgaria), Briestensky, Milos; Rowberry, Matt; Stemberk, Josef; Stefanov, Petar; Vozar, Jozef; Sebela, Stanka; Petro, Lubomir; Bella, Pavel; Gaal, Ludovit; Ormukov, Cholponbek;
0
Proc. XXXI IAH congress Munich 2001, 2001, p. 77-81
Microbiological decay of Naphthionate in water samples as a source of misinterpretation of tracer tests
Goldscheider N. , Hö, Tzl H. , Kottke K.
Abstract:
The UV fluorescent dye Naphthionate is often used for groundwater tracing due to its favourable properties. As it is invisible in the water, it was selected as a tracer for an experiment in the karstic catchment of the mineral springs of Stuttgart (Germany) where any risk of colouring had to be avoided. Irregular breakthrough curves indicated the decay of Naphthionate. It was possible to demonstrate that the decay does not occur in the aquifer but in the sampling bottles. Laboratory experiments proved that the decay is due to microbiological activity and favoured by room temperature while the light has no significant influence.
The UV fluorescent dye Naphthionate is often used for groundwater tracing due to its favourable properties. As it is invisible in the water, it was selected as a tracer for an experiment in the karstic catchment of the mineral springs of Stuttgart (Germany) where any risk of colouring had to be avoided. Irregular breakthrough curves indicated the decay of Naphthionate. It was possible to demonstrate that the decay does not occur in the aquifer but in the sampling bottles. Laboratory experiments proved that the decay is due to microbiological activity and favoured by room temperature while the light has no significant influence.