The Ion Chromatography (IC) technique is based on the separation of ions through a column charged either positively, in the case of an anion separation column, or negatively, in the case of a cation separation column.
IC analyses are mainly performed on three types of INDAAF samples:
- rainwater in order to determine the chemical composition of rainfall (major organic and inorganic ions),
- impregnated filters collected by passive samplers to determine gases concentrations: SO2, NH3, NO2, HNO3 and O3,
- Teflon filters in order to determine the mineral and organic soluble part of aerosols collected on these filters.
The LAERO’s chemistry service is equipped with:
- 3 THERMO DIONEX chromatographs: ICS 1000, ICS 1100 and ICS5000+,
- the Chroméléon THERMO DIONEX acquisition and reprocessing software,
- THERMO DIONEX automatic loaders.
![](https://www5.obs-mip.fr/wp-content-omp/uploads/sites/62/2022/12/Chromato_inonique1.jpg)
![](https://www5.obs-mip.fr/wp-content-omp/uploads/sites/62/2022/12/Chromato_inonique2.jpg)
![](https://www5.obs-mip.fr/wp-content-omp/uploads/sites/62/2022/12/Chromato_inonique3-858x1024.jpg)
Analytical protocols:
![](https://www5.obs-mip.fr/wp-content-omp/uploads/sites/62/2022/12/Protocoles-analytiques-IC.png)
Thermograms:
![](https://www5.obs-mip.fr/wp-content-omp/uploads/sites/62/2022/12/Thermogram_IC-1.png)
![](https://www5.obs-mip.fr/wp-content-omp/uploads/sites/62/2022/12/Thermogram_IC-2.png)
Contact: Eric GARDRAT – eric.gardrat@aero.obs-mip.fr