Director
Deputy
Secretariat
Steffanie Schirren
Institute of Climate-Smart Agriculture
Bundesallee 65
38116 Braunschweig
Phone: +49 531 596 2602
Fax: +49 531 596 2699
ak@thuenen.de
Centralized laboratory of the Institute
Head of the facility: Dr. Daniel Ziehe
The Centralized laboratory of the Thünen Institute of Climate-Smart Agriculture supports the scientific work of the institute by providing analytical test methods for air, water, soil and plant material.
Technical equipment
Metrohm Ion Chromatography System, consisting of
- 882 Compact IC plus (cation analysis)
- 761 Compact IC with 833 IC Liquid Handling Unit (anion analysis)
- 858 Professional Sample Processor-Pump with Dosino 800
Skalar Continuous-Flow Analyzer, consisting of
- San++ analysis system for analysis of ammonium, nitrate/nitrite, ortho-phosphate and free aluminum
- SA 1050 Random Access Auto Sampler
Metrohm Ion Chromatography System, consisting of
- 850 Professional IC AnCat-MCS (cation and anion analysis)
- 850 Professional IC Detector <<idetector>>
- 858 Professional Sample Processor-Pump with Dosino 800
Agilent 7890A Gas Chromatograph
- with thermal conductivity, helium ionisation and electron capture detector
- CTC autosampler GC PAL
2 Shimadzu GC-2014 Gas Chromatographs
- with flame ionisation and electron capture detector
- LAL autosampler “Probe 64“
Varian CP-3800 Gas Chromatograph
- with flame ionisation and electron capture detector
- QUMA QHSS-111 autosampler
Elemental Analyzer LECO TruSpec CN incl. TruSpec S-Unit and autoloader
Elemental Analyzer LECO TruMac CN
Dimatoc 2000 with autosampler (and DimaAir gas generator) of Dimatec
Mitsubishi Total Nitrogen Analyzer TN-100 with Auto Liquid Sampler and Auto Sample Injector ASI-100
Bruker FT-NIR-Analyzer MPA (Multi-Purpose Analyzer)
Shimadzu UV-1800 UV-Spectrophotometer
3 Heinemeyer systems (measuring set-up by Dr. O. Heinemeyer with ADC 225 MK3 IR-Gas Analyzer)
Retsch mixer mills MM 400 and MM 301
Areas of responsibility
- Quantification of concentrations and depositions of reactive trace gases and aerosols in the atmosphere by denuders, filters and rain collectors, respectively; quantification of concentrations of individual gases (NH3) by passive samplers; determination of analyte concentrations by ion chromatography, continuous flow analysis and atomic absorption spectrometry
- Measuring gas exchange (CO2, CH4 and N2O) in the field using closed chambers to quantify greenhouse gas emissions from soils
- Measuring dissolved gases (N2, Ar, O2, N2O, CH4) in aquatic systems to investigate indirect greenhouse gas emissions from agriculture
- Measuring fluxes of CO2, CH4 and N2O during soil incubations in the laboratory to investigate processes causing greenhouse gas emissions from agricultural ecosystems
- Elemental analysis of carbon, nitrogen (and sulphur) of soil and plant samples
- Measurement of dissolved organic carbon (DOC) concentrations in aqueous samples (soil, ground and surface water) for the quantification of carbon losses from soils and catchments as part of the C-cycle
- Measurement of total dissolved nitrogen (TDN) concentrations in aqueous samples (soil, ground and surface water) for the quantification of nitrogen losses from soils and catchments as part of the N-cycle
- Application of physical and chemical soil fractionation methods to obtain soil organic matter fractions of different stability Performance of soil incubation experiments with and without 13C15N-labelled substrates to enhance process understanding of C and N transformation in different soils
- Development of methods for rapid and economical determination of soil carbon and nitrogen (amount and quality) by near infrared spectra (FT-NIR)
- Performance of soil incubation experiments with a semi-automatic Heinemeyer system with 24 positions determining microbial biomass or basal respiration