Common methods to remove protein are:
① Add water-miscible organic solvents, such as ethyl ester, methanol, acetone, tetrahydrofuran, etc.
(2) adding neutral salts, such as saturated ammonium sulfate, sodium sulfate and citrate.
③ Add strong acid, such as 10% trichloroacetic acid and 65% perchloric acid.
④ Adding precipitant containing zinc salt and steel salt, such as CuSO4-, Na2WO4, ZnSO4—NaOH, etc.
Extended data:
Main significance:
Water resource is one of the indispensable and irreplaceable important resources for the development of human society, which plays a guarantee role in social and economic development and people's daily life and production. At present, the water crisis in human society has directly restricted the economic development and affected the normal life of human beings.
Therefore, it is urgent and necessary to face up to the water crisis and pay attention to the water resources problem. Water quality analysis plays an important role in the investigation and control of water resources quality. This paper mainly considers the influence of drinking water on human health, and its water quality standard includes not only physical and chemical indicators, but also microbial indicators.
For industrial water, it is necessary to consider whether it will affect product quality or easily damage containers and pipelines. Water resource is one of the indispensable and irreplaceable important resources for the development of human society, which plays a guarantee role in social and economic development and people's daily life and production.
Baidu Encyclopedia-Water Quality Analysis