The toxicity of chromium is related to its valence state. It is generally considered that the toxicity of hexavalent chromium is 100 times higher than that of trivalent chromium, and hexavalent chromium is more easily absorbed by human body and accumulated in the body, resulting in liver cancer. Therefore, hexavalent chromium has been stipulated as one of the indicators of total amount control in China.
Features
Adopt GB/T7467-87 "Water Quality-Determination of Hexavalent Chromium Diphenylcarbazide Spectrophotometry"; GB/T7466-87 "Water Quality-Determination of Total Chromium";
Intelligent fault self-diagnosis function, instrument management and maintenance are very convenient;
It has the function of automatic range switching without manual setting;
With counter control function, the instrument can be controlled by remote central control to increase operation convenience;
Sampling methods such as timing, interval and telemetry can be set;
After abnormal reset and power failure, the instrument discharges residual reactants and automatically resumes working state;
It is suitable for surface water, groundwater, sewage and other process detection;
Has the network function, through the network, can realize the data remote control;
Sequential injection analysis method has simple flow path, low reagent consumption and high degree of automation;
Adopt multi-channel valve, which has strong anticorrosion performance, long service life, safety and reliability.