This product uses direct colorimetric spectrophotometry. Sulfide in the water sample reacts with hydrogen ions under acidic conditions to generate hydrogen sulfide, which is carried into the absorption liquid by the carrier gas. Hydrogen sulfide and the absorption liquid generate a yellow complex, and the absorbance of the reactant is measured. The concentration of sulfide in the sample is calculated by the absorbance value.
The instrument adopts the air blowing elution method to sample pre-treatment, which avoids the influence of interfering ions, turbidity and chromaticity in the water sample on the instrument test results, and effectively eliminates the interference in the water sample.
The constant current air blowing method is adopted, which has high precision.
The color developer adopts a proprietary reagent with high sensitivity.
It has complete quality control measures such as abnormal alarm, process log recording, parallel sample testing, standard sample verification and spike recovery rate determination to ensure the reliability of monitoring results.
It has the functions of regular automatic cleaning and automatic calibration.
It has the function of automatic range switching, which can automatically adapt to the changes in water sample concentration.
It adopts RS232/RS485 interface, which can remotely read the operating status and related data of the instrument.
It can be applied to monitoring of various water bodies such as river water, surface water, drinking water and industrial wastewater.
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86 (0)731-89736888
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