(I) ion-selective electrode method

The data in Figure 4.1 were measured by HC-811 automatic ion analyzer. From the results, it can be seen that the ion-selective electrode method can completely meet the requirements of national standards, and the accuracy is very good, so the ion-selective electrode method can detect water quality very quickly and accurately.

Development and prospect of water quality measurement technology

More and more water pollution incidents are stimulating people's nerves. In 2113, in just two months, several serious water pollution incidents occurred in some provinces of China, which stimulated people's nerves. At the same time, for example, the drinking water sources of four villages in Hanxiang Village, Shuiyuan Town, Huanjiang Maonan Autonomous County, Guangxi, are smelly and turbid, and the water pollution incident caused by aniline leakage from Tianji coal chemical industry in Shanxi forced a large-scale water stoppage in Handan City, Hebei Province, and the serious water pollution incident in Zhujing Town, Jinshan District, Shanghai, which led to the pollution of the surrounding waters, etc., are also events that have been widely reported by the media recently. This serious water pollution incident is complaining about the harm of water pollution and warning people of the importance of water pollution prevention and control.

how to control the water pollution problem in key areas needs to be solved from the source. at this time, water quality monitoring instruments play an important role. Water quality monitoring is an important way of pollution early warning, pollutant monitoring and treatment effect evaluation, which requires online water quality monitoring instruments to provide accurate and real-time monitoring data. With the social concern about water pollution, the demand for water quality monitoring tools has opened the door for the development of water quality online monitoring instruments and provided a market.

traditional water quality monitoring has been difficult to meet the needs of current water pollution prevention and control work in China. The traditional method of water quality monitoring is manual sampling and then laboratory instrument analysis. It is not only time-consuming and labor-intensive, but also has shortcomings in data accuracy and real-time performance. Because of such shortcomings, there is an urgent need for instruments and methods that can continuously and automatically monitor data, such as online automatic water quality monitoring instruments. The on-line automatic water quality monitor is fast, continuous and accurate, which has made it occupy an important position in the water pollution prevention and control industry.

to sum up, the development prospect of water quality analyzer has a large market space, which is both an opportunity and a challenge for domestic enterprises.