Nitrite mainly refers to sodium nitrite, which is white to light yellow powder or granular, slightly salty in taste and easily soluble in water.

Its appearance and taste are similar to table salt, and it is widely used in industry and construction. It is also allowed to be used as a coloring agent in meat products in a limited amount.

The probability of food poisoning caused by nitrite is high.

Ingestion of 0.3 to 0.5g of nitrite can cause poisoning or even death.

Therefore, determining the nitrite content is a very important item in food safety testing.

The detection range of Sanfangyuan products is: 0~10mg/L for liquid samples and 0~100mg/kg for solid samples.