TOC (Total Oxidizable Carbon) IN PURIFIED WATER
Trimethyl amines, chloroforms, and urea are some of the organic material present in ultrapure water. A high sensitivity TOC analyzer that uses ultraviolet light, or ultraviolet light and persulfate, to breakdown organics to carbon dioxide is used to measure TOC levels. The measurement of the carbon dioxide can be effected by conductivity or by infrared spectrometry.
The lower detection limit for Total Oxidizable Carbon is 5ppb.
old R. O. membranes
UV, new thin film
UV’s at 185nm