Ammonia nitrogen mainly refers to non ionized ammonia（NH₃）And ammonium ions（NH₄⁺）Nitrogen exists in various forms, among which non ionized ammonia is the main factor causing toxicity to aquatic organisms. Ammonia nitrogen is a nutrient in water bodies that can lead to eutrophication.Our country's environmentguaranteeThe department has taken many measures,Request forIndustrial wastewater and domestic sewage from industries such as fertilizers, smelting, and synthetic detergentsAmmonia nitrogen detection is required in the sample. Discharge standards for urban sewage treatment plants（GB 18918-2002 stipulates that the first level standard for ammonia nitrogen shall not exceed 5mg/L, and the second level standard shall not exceed 25mg/L.

This reagent, based on the ammonia nitrogen water sample acid spectrophotometry method, has the advantages of a large testing range, accurate results, good parallelism, strong anti-interference ability, easy operation, low cost, and no harmful substances such as heavy metals in the testing waste liquid. Suitable for the requirements of batch, rapid, and accurate determination of various water quality.