Aluminum ions in water, like other heavy metals, are harmful to the human body when they are too high in content. However, as the third most abundant element in the earths crust, it exists in many forms in natural waters. In recent years, monitoring of wa

In water quality testing, different parameters will use different instruments. Each instrument uses different methods in actual operation. For example, some time ago we introduced the flame atomic absorption spectrophotometry used to detect potassium ions

There are many methods for daily detection of potassium ions in water. Among them, the more convenient method is atomic absorption spectrometry. The principle is to directly inhale the sample into an atomizer for atomization. Under the high temperature of

Everyone knows that there are many methods used in the detection of iron ions in water. Among them, the more commonly used is the o-phenanthroline spectrophotometry. Dissolve into an ionic state, and then reduce the ferrous iron in the water to ferrous ir

As a metal element that exists widely in nature, copper is also one of the earliest metals used by mankind. It can be seen in many places; It is clearly stipulated that the content of copper in drinking water cannot exceed 1.0 mg/L. Therefore, copper is a

Iron is a relatively common heavy metal element in water. If proper iron is contained in drinking water, it is beneficial to the human body. But once the iron element in the water exceeds the standard for long-term drinking, it will cause harm to the huma

Everyone knows that when measuring some water quality, the results are often affected by many factors. Therefore, if the inspector wants to improve the accuracy of the measurement result, he must master the problems that need attention in the operation in

There are many methods for detecting sodium ions in water, such as atomic absorption spectrophotometry, static method, etc. Among them, the atomic absorption method is suitable for the determination of sodium 5-500mg/L water samples. The main principle is

In a medium with a pH of 9, indigo sodium disulfonate is electrolyzed by a galvanic cell composed of porous silver particles and zinc particles to form a reduced yellow substance. When this substance meets the dissolved oxygen in the water, it will be oxi

Under acidic conditions, hydrazine reacts with dimethylaminobenzaldehyde to produce yellow azo compounds. The depth of yellow is proportional to the content of hydrazine within the measurement range. Generally, the absorption wavelength of azo compounds i