Rapid testing method of carbonates in fresh milk

The invention discloses a rapid testing method of carbonates in fresh milk, belonging to the food rapid testing field. The method can be successfully used for the rapid testing of carbonates in fresh milk. The method is based on the phenol red developing principle, the indexing of the reaction developing areas of milk samples containing different contents of carbonates is good, and the sensitivity is high. The reagents used in the method are cheap, the operation procedures are simple, the developing effect is good and the detection lower limit is 0.05%. The prepared reagent of the invention can be stored for at least half a year while the detection sensitivity is not influenced and be applicable to the on-site qualitative and half-quantitative detection.