Mass spectrometry has left a great

Mass spectrometry has left a great impression on people. Most of the detection limit of its solution is ppt level. However, the actual detection limit can not be better than the laboratory cleaning conditions. It must be pointed out that the PPT detection limit of mass spectrometry is for a simple solution with few dissolved substances in the solution. If the detection limit of concentration in solid is involved, the detection limit of mass spectrometry with poor salt tolerance will be 50 times worse because of its advantages. Some common heavy metal light elements have serious interference in mass spectrometry, which will also worsen its detection limit. However, there are also professionals who attribute the treatment of heavy metal pollution to two detection methods. These two detection technologies are both chemical methods. Here, two methods will be listed for discussion.The above two chemical methods of heavy metal detection technology can affect the crops in agricultural products, protect the growing environment of crops in agricultural products, reduce the harm of heavy metals to crops in agricultural products, and reduce or even eliminate the biological toxicity brought by heavy metals.