On-Line Analytical Probes
On-line analytical probes, including ion-selective electrodes, are extremely convenient for continuous or nearly-continuous early warning monitoring applications, and are available from a variety of manufacturers as single probes or as sets that monitor multiple parameters. The latter devices typically use different ion-selective and other electrodes to measure levels of several parameters at once, including temperature, pH, turbidity, conductivity, dissolved oxygen, oxidation-reduction potential (ORP), nitrate, NH3/NH4, chlorophyll, select metals, and physical parameters such as water level.
|