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Ion Chromatography (IC)

(IC) Ion chromatography is one of new HPLC method to detect ionic content. When the liquid (with ions dissolved) is pumped into a separation column, attributed to the different exchange rates between the ions and the column, different ions will be separated and be detected by a conductivity detector. IC can be used to analyze regular anions, cations and organic acid or base.

IC Technical Capabilities

• Signal Detected: Ions
• Elements Detected:  anions (F^-、Cl^-、Br^-、NO₂^-、NO₃^-、SO₄^2-、PO₄^3-)
•                    Cations (Li⁺、Na⁺、NH₄⁺、K⁺、Mg²⁺、Ca²⁺)
• Detection Limits: ug/L～mg/L， uppermost: 10^-12g/L

Applications for IC Analysis

• Ion measurement in liquids (rain water, tap water, DI water, beverage, cooling water, detergent, plating solutions etc.)
• Ion analysis on material surface
• Ion analysis of chemical products (extractions, polymers, cosmetics etc.)
• Ion analysis of gas
• Ion analysis of soil/fertilizer

Relevant Industries for IC Analysis

• Electronics/Semiconductors
• Metal/steel
• Environment/environment protection
• Pharmacy/ iatrology
• Food/beverage
• City water supplying/sewage disposal 
• Chemical products/cosmetics
• Agriculture
• Paper making/pulp

Strengths

• Fast
• High sensitivity
• Good selectivity
• Can analyze much different ions at one time
• Good stability and large capacities of the separate column

Limitations

• IC can measure only a few ions
• Samples with high polarity can not be analyzed by IC