OVERVIEW
Designed for the analysis of anions and cations
- This IONUS is suitable for the analysis of anions and cations in research, development and everyday routine.
- The sample solutions are mostly water-based and may contain water-miscible organic solvents. A classic example is the analysis of (drinking) water according to EPA 300 Part A and B.
- The advantage of IONUS is the compatibility with IC columns of all manufacturers and is compatible with all common eluents of anion and cation chromatography.
Main technical specifications of the system​
- Method
- Ion exchange chromatpgraphy with in built conductivity detector
- Optional with UV detection
- Conductivity detection
- Noise: 0.02 µS/1 s | range: 0 – 10 mS/cm
- Reproducibility
- 0.1 % RSD at 100 µL/min
Flowchart
- In order to measure smaller concentration ranges in anion analysis, the instrument can be equipped with suppressor technology.
- When applying without suppressor technique, it can happen that in the chromatogram there are negative as well as positive peaks for the individual substances or that the peak areas are very small due to very small conductivity differences.
- In this case the external UV/VIS detector can provide a remedy by using indirect UV detection for light-absorbing eluents.
- Another possibility is to use non-absorbent eluents for light-absorbing sample substances.
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