Why is TOC so important in ultrapure water systems?
Categories: Industry Blog
Release time:2024-11-13
The water quality indicators of ultrapure water equipment are numerous, one of which is TOC. TOC has varying impacts on many precision instrument analyses and experiments, such as HPLC, LC-Mass, and cell culture.
1. High TOC will affect experimental analysis results.
1. Detection sensitivity decreases, detection limits rise, and reproducibility is poor.
2. The blank baseline value is too high.
3. Contaminated medium with active surfaces.
4. Chemical interference occurs.
5. Diffusive or non-diffusive effects occur.
6. Contaminative sedimentation occurs in purification or separation media.
The TOC of ultrapure water is very low, generally below 10 ppb. Offline detection is impossible due to significant environmental influence, causing TOC to rise quickly. Therefore, online TOC detection in ultrapure water equipment becomes particularly important to avoid contact with air and accurately detect the TOC of the output water. Currently, only a few manufacturers have equipped ultrapure water systems with online TOC instruments, but looking towards future development, TOC instruments will gradually become standard configurations for ultrapure water equipment.
2. Benefits of online detection of ultrapure water TOC.
1. Many organic substances cannot dissociate or only partially dissociate in water, and resistivity cannot represent the content of organic substances.
2. TOC measurement is a gradual and effective method.
3. Direct online TOC measurement in the ultrapure water system can provide early warnings of organic contamination, preventing the use of ultrapure water with excessively high organic content.
The above is an introduction to the importance of TOC in ultrapure water equipment. Nowadays, with the rapid development of experimental technology, ultrapure water equipment has become a basic configuration in many industries. The above is an introduction to the importance of TOC in ultrapure water equipment.
Keywords: Why is TOC so important in ultrapure water systems?
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