δ13C in cellulose and wood

Vario MICRO Cube – ISOPRIME, Elementar

Instrument description:

ISOPRIME magnetic sector mass spectrometer (Elementar^®) coupled to a vario MICRO Cube elemental analyser (Elementar^®).

Principle of the analysis:

The solid samples (which were weighed in tin capsules) undergo combustion at around 1000°C. They are converted into CO₂ gas. The sample gas is then introduced into the spectrometer source under helium flow and analysed against a commercial reference CO₂ gas.

The gas molecules are ionised in the source, accelerated by an electric field and deflected according to their mass by a magnetic field. Three Faraday cages are placed at the output, enabling masses 44, 45 and 46 to be recovered. The accuracy of the analysis of δ¹³C is 0.10‰.

Type of analysis performed on this instrument:

Stable carbon isotopes ratios in cellulose and wood.

Fundings:

Projet : RIOCAS, IDF-DIM-MAP-2021-3-001

Contacts:

Monique Pierre : 01.69.08.31.20 / This email address is being protected from spambots. You need JavaScript enabled to view it.

Michel Stievenard : 01.69.08.71.70 / This email address is being protected from spambots. You need JavaScript enabled to view it.