Instrument: Ion Chromatograph
Ion chromatography is a form of liquid chromatography that measures concentrations of ionic species by separating them based on their interaction with a resin. Ionic species separate differently depending on species type and size. Ion chromatographs are able to measure concentrations of major anions, such as fluoride, chloride, nitrate, nitrite, and sulfate, as well as major cations such as lithium, sodium, ammonium, potassium, calcium, and magnesium in the parts-per-billion (ppb) range. (from http://serc.carleton.edu/microbelife/research_methods/biogeochemical/ic.html)
Porewater samples collected for: Anions (Sulfate + Chloride)
Analytical Method: Ion Chromatography
Instrument: DIONEX ICS-2000
Method Reference: DIONEX Application Note 154: Determination of Inorganic Anions in Environmental Waters Using a Hydroxide-Selective Column