The method of detecting protein by lead acetate
To know the protein, you can use lead acetate to test it. The method is as follows: Take an appropriate amount of liquid containing protein and drop it into the lead acetate test solution. If the liquid contains protein, it can be seen that there is precipitation. This is because lead ions bind to the protein, causing its solubility to change, so the precipitation is precipitated.

Looking at the state of this precipitation, you can briefly know the characteristics of the protein. If the precipitation is fine and the amount is large, it may indicate that the protein content is high; if the precipitation is coarse or small, the protein content may be low. And different proteins, the shape and color of the precipitate generated by the reaction with lead acetate may be different, so the type of protein can be slightly distinguished.

The method of detecting protein by lead acetate is relatively simple and useful for the preliminary judgment of protein. However, there are also limitations. Other substances or interfere with the reaction, resulting in wrong results. Therefore, when using this method, when considering the influence of other factors, if necessary, supplemented by other methods to verify, the definitive conclusion can be obtained.