Instran Online High Concentration Iron Ion Concentration Meter
Continuous measurement of iron ion concentration in water is possible!
Method - Colorimetric Analysis After introducing the sample into the measurement cell, several reagents are added to adjust the conditions of the solution (such as pH and the valence of elements). Subsequently, a blank measurement is performed to correct for the effects of temperature and turbidity. Then, the final reagent is added, which reacts with the solution to produce a color that is measured at the appropriate wavelength. Depending on the photometer used, the results are obtained with very high precision. Trivalent iron ions (Fe³⁺) are reduced to divalent iron (Fe²⁺) by hydroxylamine hydrochloride. Divalent iron ions react with 1:10-phenanthroline in a solution adjusted to a pH range of 5 to 7 to form a pink complex. This method allows for the measurement of relatively high concentrations of iron without excessive absorbance. The reagents used are stable. If it is necessary to measure total iron, the stirring time can be extended to ensure that the iron completely dissolves in the acidic solution.
basic information
Specifications Measurement range: 0 to 2.5 ppm / 5 ppm (Measurements of higher concentrations are possible through internal dilution) Accuracy: ±2% Reproducibility: ±2% Resolution: 0.001 ppm Analysis time: Approximately 15 minutes Calibration: 2-point calibration LED wavelength: 550 nm Reagent 1: 2.25 ml per analysis, 1.75 L per month Reagent 2: 4.55 ml per analysis, 3.30 L per month *Monthly consumption is calculated based on performing one analysis per hour.
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Instran
Applications/Examples of results
Multi-purpose
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