Analyzes of the concentration of major cations in solution

ThermoFischer Scientific Aquion

Ionic Chromatography for cation concentrations analysis (Li⁺, Na⁺, NH₄⁺, K⁺, Rb⁺, Mg²⁺, Cs²⁺, Ca²⁺, Sr²⁺, Ba²⁺)

Instrument description

Ionic chromatography (ThermoFischer Scientific Aquion) measures the cation concentrations of solutions. The separation of cations can be done on different columns depending on the matrix and ions of interest.

Principle of analysis

A liquid sample (filtered) is introduced, from the autosampler, into an injection loop, then through a column separating the ions which arrive, one after the other, separated by the column, on a detection cell (here conductimetry). The concentration of the cations is determined in relation to a previously established calibration range.
See measurement principle here: http://spin.mines-stetienne.fr/sites/default/files/chromion.pdf

Analyses performed on the instrument

• Major cations (Li⁺, Na⁺, NH₄⁺, K⁺, Rb⁺, Mg²⁺, Cs²⁺, Ca²⁺, Sr²⁺, Ba²⁺) between 0.005 and 100 ppm depending on the elements with an accuracy of +/- 5%, only on liquid solutions (filtered).

Contacts

Gaël Monvoisin : 01.69.15.71.74 / This email address is being protected from spambots. You need JavaScript enabled to view it.

Funding

Domain of Major Interest – Patrimonial and Ancient Materials (DIM MAP) (DIM MAP) : Year 2020.