The nitrate automatic reduction instrument is a special instrument for the determination of nitrate content. It is based on the national standard (GB / T 5009.33-2010) spectrophotometric method - nitrite, nitrate determination Principles, methods and development. Mainly used in vegetables, fruits and their products; Meat, eggs, aquatic products and their products; Milk powder, soy milk powder, infant formula powder and other solid dairy products; Fermented milk, milk, condensed milk and other liquid dairy products nitrite and Nitrate determination, can also be applied to medicinal plants, environmental protection, drinking water and other food and other areas of nitrite and nitrate content determination and scientific research. Welcome friends from all walks of life come to visit, guidance and business negotiations.