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701-1333-00L 3 Credits MSC D-USYS
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Isotopes and Biomarkers in Biogeochemistry Laboratory

Lecturers & Examiners: Prof. Dr. Rolf Kipfer, Prof. Dr. Carsten Schubert
VVZ CR n/a

Last Updated: 2026-06-01 11:31:43

Abstract

This course will illustrate how different tracers and isotopes are used in natural systems. Here especially the processes (transformation, timescales) that take place and can be revealed by tracers/isotopes will be demonstrated.

Objective

Students know how to use tracers/isotopes to investigate/understand ecosystems They will understand the methods and analytical devices related to tracer/isotope work Have a feeling for timescales on which natural processes occur Students will be able to apply different sampling techniques in aquatic sciences

Content

Basics: Carbon isotopes as tracer for methane oxidation 210Pb, 137Cs as a tracer for sedimentation rate/mixing SF6, Neon, He as tracers for exchange processes at the air/water interface Case assessment: Sampling of a Swiss lake (Rotsee) Sampling techniques for different elements Sample preparation for different techniques Measurements at isotope mass spectrometer/gamma counter Interpretation of results from the special sampling campaign and in a broader context

General Information

Language
English
Levels
MSC
Frequency
Yearly recurring

Examination

Type
ungraded semester performance

Registration & Places

Max Places
14
Signup End
16.09.2025

Course Components

Type Title Time & Place Hours
practical/laboratory course Isotopes and Biomarkers in Biogeochemistry Laboratory
Takes place in the 1st half of the semester. Sampling takes place at Lake Rotsee near Lucerne at the first day and is obligatory. Practical laboratory work takes place at EAWAG in Kastanienbaum (near Lucerne, 3 times), at Duebendorf (once) and we meet 2 times at ETH (room on appointment) for preparing the presentation and give the presentation.Detailed Information will be sent by mail shortly before the sampling campaign.
  • Thu 08:00-18:00 (EAW A G)
  • 30.10 Date 09:15-12:00 (LFW B 3)
4 h weekly

Offered In