免费观看B站60帧的视频软件_一线二线三线99热热久久精品无码_国产99在线a视频国产高清乱码中文_日韩亚洲和欧洲码_忘忧草WWW日本社区_91福利免费在线av观看一区二区三区,网友自拍区视频精品

Nickel is a silver white, magnetic metal that is stable in air at room temperature and is an inactive element. Nickel is prone to react with nitric acid and has a slower reaction with dilute hydrochloric acid or sulfuric acid. Nickel exists in various minerals in nature and often combines with sulfur, arsenic, or antimony. Nickel may be present in wastewater from industrial processes such as mining, smelting, alloy production, metal processing, electroplating, chemical engineering, ceramics, and glass production.

The components to be tested in the water sample react with the digestion reagent to generate substances of different colors through digestion. The analyzer detects the color change of the generated substances and calculates the corresponding components to be tested within the range of Beer's law.

1. The intelligent fault self diagnosis function makes instrument management and maintenance very convenient;

2. Automatically determine the presence or absence of reagents and sound a warning;

3. Equipped with automatic range switching function, no manual setting required;

4. Equipped with reverse control function, it can be remotely controlled through central control to increase operational convenience;

5. Sampling methods such as timing, interval, and telemetry can be set;

6. Abnormal reset, power outage, and power on, the instrument discharges residual reactants and returns to working state;

7. Suitable for process detection of surface water, groundwater, and sewage treatment;

8. Having network functionality, remote control of data can be achieved through the network;

9. Sequential injection analysis method has a simple flow path, low reagent consumption, and high degree of automation;

10. Adopting multi-channel valves, it has strong anti-corrosion performance, long service life, and is safe and reliable.