Detector Tubes

This tube measures the Sulfide Ion (S2- ), Chloride Ion (CI- ), Mercury (Hg),Iron Ion (Fe2+), Copper Ion (Cu2+) , Zinc (Zn) , Nickel (Ni), Chromium (VI) Ion (Cr6+), Ozone (O3) dissolved in water. Place the sample water in a container. Brake off both ends of the detector tube and immerse in the sample water is drawn into the tube by capillary action.