Introduction
In order to protect the water environment, monitoring of sewage discharge must be strengthened. The design of the inspection points and the quality of the instrumentation (mainly multi-parameter water quality analyzers) play a crucial role in the monitoring of the water environment. The chemical and physical methods are used to determine the content of various chemical components in water. The multi-parameter water quality analyzer is divided into three types: simple analysis, full analysis and special analysis. The analysis is carried out in the field, with few analytical projects, but the requirements are fast and timely. The project for the preliminary analysis of the main chemical composition of groundwater in aquifers over a large area depends on the needs of specific tasks. Another multi-parameter water quality analyzer can quickly and accurately determine qualitative and quantitative analysis, and can be fully automated, intelligent, real-time online, multi-parameter simultaneous analysis, and the results and print the report.
Water is the source of life. Human beings are inseparable from water in their daily life and production activities. The quality of drinking water is closely related to human health. With the development of social economy, scientific progress and the improvement of people's living standards, people's water quality requirements for drinking water have been continuously improved, and drinking water quality standards have been continuously developed and improved accordingly. As the development of drinking water quality standards is related to people's living habits, culture, economic conditions, scientific and technological development level, water resources and water quality status, not only between countries, but also between different regions of the same country. There are differences in the requirements for drinking water quality.
use
Drinking water mainly considers the impact on human health. In addition to physical and chemical indicators, the water quality standards also include microbiological indicators. For industrial water, it is considered whether it affects product quality or is prone to damage to containers and pipelines. Can be widely used in power plants, pure water plants, water plants, domestic sewage treatment plants, beverage plants, environmental protection departments, industrial water, aquaculture, textile industry, wine industry and pharmaceutical industry, epidemic prevention departments, hospitals and other departments of the ions Parameter determination.
working principle
The multi-parameter water quality analyzer mainly uses ion-selective electrode measurement to achieve accurate detection. Electrodes on the instrument: pH, fluorine, sodium, potassium, calcium, magnesium, and reference electrodes. Each electrode has an ion-selective membrane that reacts with the corresponding ions in the sample being tested. The membrane is an ion exchanger that reacts with the ionic charge to change the membrane potential, and the potential between the sample and the membrane can be detected. . The two potential differences detected on both sides of the film generate current, and the sample, reference electrode, reference electrode liquid constitutes the "loop" side, the membrane, the internal electrode liquid, and the internal electrode are the other side.
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