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AU169: Determination of Silicate and Inorganic Anions in High Purity Water Using Sequential Detection and AutoPrep
Description
Silicate is monitored in ultra high purity water because it is one of the first ions to break through deionization cartridges used for water purification. AN 170 showed how an ion chromatography system can determine sub-μg/L concentrations of silicate by visible absorbance after a post-column reaction. In these waters, low μg/L and sub-μg/L concentrations of inorganic anions and short chain organic acids are also determined. This Application Update (AU) shows how low concentrations of inorganic anions, organic acids, and silicate can be determined in one injection.| Market: | Other |
| Keywords: | High purity water, IonPac AG4A-SC, Postcolumn reagent, fluoride, Nitrate, RFIC, IonPac AS19, Nitrite, Chloride, phosphate, Sulfate, Bromide, silicate, CRD-200 |
| Matrix: | Water |
| Author: | Thunyarat Phesatcha, Weerapong Worawirunwong, Jeff Rohrer |
| Affiliation: | Thermo Fisher Scientific |
For Research Use Only. Not for use in diagnostic procedures.
