Instran Online High-Concentration Silica Meter
Continuous measurement of silica concentration in water is possible!
Method - Colorimetric Analysis After introducing the sample into the measurement cell, several reagents are added to adjust the solution conditions (such as pH and valence elements). A blank measurement is then performed to correct for the effects of temperature and turbidity. Next, the final reagent is added, which reacts with the solution to develop color, and this is measured at the appropriate wavelength. Depending on the photometer used, the results are obtained with very high precision. Silicon (silica) reacts with molybdate reagent in an acidic environment to form a yellow silicomolybdic acid complex. This complex is reduced by ascorbic acid, resulting in a blue color known as "molybdenum blue." The concentration of this blue color is proportional to the silica concentration. The developed blue color is very intense, providing excellent accuracy and reproducibility. This method can also measure very low concentrations of less than 50 ppb. *Interfering Factors Phosphates and tannins: can be removed by oxalic acid Hydrogen sulfide and large amounts of iron: cause interference
basic information
Specifications Measurement Range: 0–1 ppm / 5 ppm / 10 ppm (High concentrations can also be accommodated through internal dilution) Accuracy: ±2% Reproducibility: ±2% Resolution: 0.01 ppm Analysis Time: Approximately 15 minutes Calibration: 2-point calibration LED Wavelength: 650 nm Reagent Consumption Reagent 1: 4 ml per analysis, 3.0 L per month Reagent 2: 3 ml per analysis, 2.25 L per month Reagent 3: 4 ml per analysis, 3.0 L per month *Monthly consumption is calculated based on performing one analysis per hour.
Price range
Delivery Time
Model number/Brand name
Instran
Applications/Examples of results
Power plants and many other applications.
