HELGES – Cosmogenic Nuclides Sample Preparation Lab
GFZ - German Research Centre for Geosciences
last updated: July 19, 2023
About the Laboratory
HELGES – Cosmogenic Nuclides Sample Preparation Lab
GFZ - German Research Centre for Geosciences
@ Section 3.3 Earth Surface Geochemistry
This Laboratory
is part of:
- HELGES – Helmholtz-Laboratory for the Geochemistry of the Earth Surface laboratory complex
- GFZ Research Infrastructure: Large Infrastructure LI
- Networks: Geo.X
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Description
Pre-treatment of river sediment and soil samples for cosmogenic isotope analyses (¹⁰Be, ²⁶Al) includes purification steps to obtain pure quartz sands prior to dissolution and element separation by ion chromatography column chemistry. From sieved samples, minerals are separated by magnetic separation and/or heavy liquids, and silicate and oxide minerals are chemically separated from quartz by leaching with acids (HF, HCl, HNO₃) at elevated temperatures.
Instruments
- IC - Ion Chromatograph
- Heavy Liquid Separation Line
- Frantz Magnetic Separator
Analytical Methods
-
IC - Ion Chromatography
Ion Exchange Chromatography - Mineral Separation
- Leaching
Laboratory Keywords
In addition to the instruments and analytical methods listed above, these keywords help to describe the work done in the laboratory. This may include the type of samples, standard materials, specific preparative or analytical methods and specific instrument characteristics.
- Acid Dissolution
- Acid Leaching
- Chemical Leaching
- Magnetic Separation
- Purification