Edta Zinc

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• Scavenging metal ions: in biochemistry and molecular biology, ion depletion is commonly used to inactivate metal-dependent enzymes which could damage DNA or proteins


• Complexometric titrations.


• Buffer solutions.


• Determination of water hardness.


• EDTA may be used as a masking agent to remove a metal ion which would interfere with the analysis of a second metal ion present


• An anticoagulant in medical and laboratory equipment.


• A preservative (usually to enhance the action of another preservative such as benzalkonium chloride or thiomersal) in ocular preparations and eyedrops. See "les conservateurs en opthalmologie" Doctors Patrice Vo Tan & Yves lachkar, Librarie Médicale Théa.


• A titrant used to determine nickel concentration in an electroless nickel plating bath.


• In metallography to remove staining due to etchants. Metal oxides are removed by gently swabbing with EDTA and rinsing in water.


• In cell cultures EDTA is used as a chelating agent which binds to calcium and prevents joining of cadherins between cells, preventing cell clumping. (often used in cell culture control).