Institute of

Climate-Smart Agriculture

Secretariat

Hanne Schmidt-Przebierala
Institute of Climate-Smart Agriculture

Bundesallee 65
38116 Braunschweig
Phone: +49 531 596 2601
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 Chromatograyhy System with conductivity detection for the analysis of  anions and cations in aqueous solutions
Metrohm Ion Chromatograyhy System with conductivity detection for the analysis of anions and cations in aqueous solutions (© Thünen-Institut/AK)

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 TCD, HID, ECD and PAL autosampler for measurement of dissolved gases (N2, Ar, O2, N2O, CH4) in aquatic systems
Agilent 7890A Gas Chromatograph with TCD, HID, ECD and PAL autosampler for measurement of dissolved gases (N2, Ar, O2, N2O, CH4) in aquatic systems (© Thünen-Institut/AK)

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

Shimadzu GC-2014 Gas Chromatograph with FID, ECD and autosampler „Probe 64“ for the determination of  CO2, CH4 and N2O in up to 64 gas samples
Shimadzu GC-2014 Gas Chromatograph with FID, ECD and autosampler „Probe 64“ for the determination of CO2, CH4 and N2O in up to 64 gas samples (© Thünen-Institut/AK)

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