Organic compounds are carbon-based impurities that may be present in feed water or introduced during storage and distribution. In laboratory water systems, the overall level of organic contamination is commonly measured as Total Organic Carbon, or TOC.
Organic impurities may be present in very small quantities, but even trace levels can affect sensitive analytical applications
Organic compounds may come from:
Organic contamination may also be introduced after purification if the storage and distribution system is not properly designed.
Organic compounds can interfere with analytical methods and increase TOC. In chromatography, organic contamination can contribute to baseline noise, ghost peaks, unstable background and poor reproducibility. In LC-MS/MS, trace organics can affect sensitivity and background signal.
Organic contamination can cause:
Organic impurities may not significantly affect resistivity, so a water system can show high resistivity while still having unacceptable TOC. This is why TOC monitoring is important for critical ultrapure water applications.
Organic compounds are controlled using:
For low-TOC ultrapure water, UV oxidation and appropriate polishing cartridges are especially important.
Organic compounds may affect:
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TKA Ultrapure Water Technologies India Pvt. Ltd. is an Indian company focused on the design, manufacture and support of laboratory water purification systems… Read More