|
français
english
中文
|
Tracers
The FL24 or FL30 sondes can separate 3 different tracers selected in 5 classes I to V. Tracers from the same class cannot be separated (Uranine-Eosine: can't be separated). Standard setup comprises optics of Class I, II and III. On request, they can be replaced by Classes IV and/or V. The FL22 sonde is equipped with one optics of Class I, also convenient for detection of Class II tracers.
Dye tracer table
| Class | Name | Detection limit with the GGUN FL |
aborption in porous media |
Bleaching by daylight |
Quantum yield with acidic pH |
Environment friendly |
Price |
| V | Sodium naphtionate | + | ++ | ++ | ++ | ++ | ++ |
| III | Tinopal (CBS-X or -CL) | +++ | - | - | - | ++ | +++ |
| III | AminoG acid | ++ | ? | ? | + | ? | + |
| III | Photine | + | - | - | ? | ? | - |
| IV | Duasyne yellow T | +++ | ++ | ? | ? | ? | ++ |
| I | Pyranine | + | - | ? | + | + | - |
| I | Uranine (Na fluorescein) | +++ | +++ | - | - | +++ | +++ |
| I | Eosine | + | ++ | - | + | + | ++ |
| II | Amidorhodamine G | + | + | +++ | +++ | + | - |
| II | Rhodamine WT | ++ | + | +++ | +++ | - | - |
| II | Sulforhodamine B | ++ | + | +++ | +++ | - | - |
Legend :+++ : very good, ++ : good, + : fair, - : not advisable
Source :
Utilisation des traceurs artificiels en hydrogéologie - Guide pratique
Groupe de travail Traçage de la Société suisse d’hydrogéologie SSH
Berichte des BWG, Serie Geologie - Rapports de l’OFEG, Série Géologie - Rapporti dell’ UFAEG, Serie Geologia
No 3 - Bern, 2002
