In the water quality test, the waste medicines mainly come from the indicators, masking agents and other medicines. If you can reduce the waste of these drugs in the measurement process, you can further reduce the disposal of waste drugs in the measuremen

The titration method is mostly used for the detection of water hardness, pH and other parameters. Generally, the solution itself will not change during titration, but the color will change. The inspector or related water quality testing equipment can judg

As a common greenhouse gas, carbon dioxide is certainly not unfamiliar to everyone. Although it is colorless and odorless, it is also soluble in water. However, a large amount of carbon dioxide will form carbonic acid after being dissolved in water, which

As a commonly used method in water quality testing experiments, spectrophotometry is mainly used for the detection of trace component content in water quality quantitative determination. According to the different wavelengths, it is divided into visible l

At present, the spectrophotometric method can only measure water samples with color or absorbance. If the tested water sample has no color or the absorbance value is very small, the water quality inspector needs to add a reaction reagent that can form a s

A lot of glass instruments and other utensils, such as beakers, flasks, funnels, droppers, etc., are used in daily water quality testing. Different detection methods and procedures, the selected utensils are different; and cuvettes are commonly used in th

In the water quality test, some items need to digest the sample, so as to ensure the accuracy of the test results. However, different water samples or different test items use different methods during digestion. For example, in the detection of heavy meta

Filtering can be used in water quality testing to separate the interfering particles in the water sample. Especially when using colorimetry or water quality detectors with colorimeters, the use of porous media to keep the particles on the filter paper can

In water quality testing, the gravimetric method is one of the commonly used methods, especially when detecting the oil content in water. The advantage of this method is that it is not limited by the type of oil, and is suitable for the determination of w

It is necessary to store a certain amount of chemical reagents when conducting water quality testing. These reagents include purchased finished chemical reagents and various reagents prepared by ourselves. In principle, these reagents should be properly m