Min. Order Reference FOB Price
10 box US$23.80-25.40 / box
Product Description
Product Description Nickel Test Kit TO MAKE IT EASIER AND MORE RAPID Principle: Under weakly acidic conditions, nickel ions form a red ternary complex with 1-(2-pyridylazo)-2-naphthol and a surfactant in the water sample. The color of the solution gradually changes from yellow to orange-red ...