Ion chromatography
Ion Chromatography (IC or IEC) gives precise concentrations of charged molecules and ions in a solution. IC can be used to detect and quantify nearly any kind of charged molecules, such as water impurities, biomass-based sugars, large proteins, small nucleotides, and amino acids.
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Chloride in solid matrices (water-soluble, one step batch extraction)
Chromium-6 (Cr-VI) in soil, sediment or sludge
Identification of an unknown sample
Lignin carbohydrate composition
Monomeric sugars in biomass-based solutions
Seaweed based sugars in solution
Seaweed carbohydrate analysis
Sodium chlorate (NaClO3), chlorate (ClO3) and chlorite (ClO2) in water based liquid sample (computational)
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Ion chromatography (IC), also known as Ion Exchange chromatography (IEC), is a member of the liquid chromatography family. Two types of ion chromatography can be identified depending on their ion exchange capability: anion exchange or cation exchange chromatography.
The principle of IC analysis is to separate differently sized and charged molecules from each other as they flow through the column dissolved in a suitable eluent. The separation of the molecules is based on their interactions with the resin that is packed in the column. Smaller molecules and molecules that have a low affinity with the resin move through faster and can be detected with an electrical conductivity detector before the larger molecules and those that have a stronger affinity. IC can separate almost all charged molecules; anions, cations, and polar molecules, and it can detect small quantities.
Suitable sample matrices
- Liquid and solid samples
- Aqueous samples
Ideal uses of ion chromatography
- Anion concentration monitoring, including the detection of nitrates, nitrite, and fluoride in drinking water
- Measuring active pharmaceutical compounds and studying drug degradation products in the pharmaceutical industry
- Detection of acids and sugars in the food industry
- Analysis of biomass-based sugars
- Measuring sulfite concentrations in wine
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Frequently asked questions
IC is used to separate and detect ionic compounds in a mixture. It gives precise concentrations of the charged particles in the sample.
Ion chromatography is an effective tool for detecting different charged or polar molecules, including sugars, proteins, amino acids, and even viruses.
Only analytes that can be charged are possible to detect with IC.
Samples can be in the form of liquids or solids.
Water analysis: ions present in the water sample.
Samples are typically biomolecules like nucleotides and peptides.
IC is also used for inorganic samples like metals.
Measurlabs offers a variety of laboratory analyses for product developers and quality managers. We perform some of the analyses in our own lab, but mostly we outsource them to carefully selected partner laboratories. This way we can send each sample to the lab that is best suited for the purpose, and offer high-quality analyses with more than a thousand different methods to our clients.
When you contact us through our contact form or by email, one of our specialists will take ownership of your case and answer your query. You get an offer with all the necessary details about the analysis, and can send your samples to the indicated address. We will then take care of sending your samples to the correct laboratories and write a clear report on the results for you.
Samples are usually delivered to our laboratory via courier. Contact us for further details before sending samples.