Ion Chromatography (IC)
Nanotechnology Research Facility
Equipment
Specifications
- Model: Shimadzu Prominence HPLC.
- Solvent delivery pump LC-20ADSP.
- Autosampler SIL-20A.
- Conductivity detector CDD-10A SP/VP.
- Absorbance detector SPD-20A.
- Column oven CTO-20AC SP.
Principles
Ion chromatography is the process of separating ions (positively or negatively charged atoms or molecules) from a solution using a stationary phase that contains oppositely charged ions. There are two main types of ion chromatography:- Anion exchange chromatography is commonly used in environmental sciences to measure negatively charged anions such as nitrate, nitrite, phosphate, and sulphate.
- Cation exchange chromatography is commonly used to measure positively charged anions such as ammonia, sodium, or potassium.
- SPD-M20A Prominence HPLC Photo Diode Array Detector provides users with the most advanced level of sensitivity and stability found in today\'s PDA detectors. The SPD-M20A attains sensitivity levels approaching the most advanced UV-Vis detectors. It has a high-sensitivity mode with an 8 nm slit width. Using light-source compensation, it offers a noise level of 0.6×10^-5^ AU, which is comparable to that of traditional UV-VIS detectors.
- CDD-10AVP Conductivity Detector The innovative dual temperature control system and bipolar synchronous detection circuit provide high sensitivity and stability. Noise level: 0.004 µS/cm. using the VP functionality, in addition to pass/fail determinations based on conductivity measurements, the system is capable of automatic calibrations, including zero conductivity correction and span adjustments.