Amsterdam University – Institute for Biodiversity and Ecosystem Dynamics (IBED)

PO Box 94240, 1090GE Amsterdam
Science Park 904, 1098 XH Amsterdam, NL

Contact
Prof. Karsten kalbitz
K.Kalbitz@uva.nl
31(0)205257434/6637

Cerli Chiara – c.cerli@uva.nl

Research line
Ecology

Topics
With the analyses of C, N, H, and S stable isotopes (δ¹³C, δ¹⁸O, δ¹⁵N, δ²H, δ³⁴S) in environmental samples, from soils to sediment and water we study:
–         Effects of changing environmental conditions on the mechanisms and rates of C      stabilization in soils
–         Interactions between land degradation and C sequestration in soils
–         Reconstruction of past environments and climates to improve future predictions
–         Fate of organic pollutants in soils, sediments and water and interactions with organisms exposed to pollution
–         Application of CSIA in forensic science

Isotopes
13C, 15N, 18O, 2H,  32S

Instruments
EA/C/IRMS, EA/P/IRMS, GC/MS, TOC/IRMS

Stable Isotope Ratio Mass Spectrometer IsoPrime 100 (Elementar – Isoprime) connected with:

Elemental Analyzer, vario ISOTOPE cube
·        EA combustion [CO₂ (δ¹³C, δ¹⁸O), N2 (δ¹⁵N), H2 (²H), SO₂ (δ³⁴S)]
·        EA pyrolysis (solid) [H₂ (²H), CO (δ¹⁸O)]
·        EA pyrolysis (liquid) [H₂ (²H), CO (δ¹⁸O)]

GC/MS, Agilent 7890A GC-MS-FID with N2 cooled PTV injector, GC5 interface
·        [CO₂ (δ¹³C), N₂ (δ¹⁵N), H₂ (δ²H), CO (δ¹⁸O)]

Gas concentrator
·        CO₂ and CH₄ (δ¹³C), N₂O (δ¹⁵N),

High temperature combustion TOC analyzer, TOC cube, TOC cube interface
·        [CO₂ (δ¹³C), N₂ (δ¹⁵N)]
CO₂ (δ¹³C, δ¹⁸O), N₂ (δ¹⁵N), H₂ (²H), SO₂ (δ³⁴S)