[化] 乙二胺四乙酸; 乙底酸; 依地酸

[医] 乙二胺四乙酸, 依地酸

[ noun ]
a complex molecule used medically to chelate metal ions in cases of lead or heavy metal poisoning
<noun.substance>

chelating agent \che"lat*ing a`gent\, n. (Chem.)
a compound which forms a chelate with a metal ion.

Note: Commonly used chelating agents in laboratory use are
{EDTA} and {sodium citrate}. Citrate is used as an
additive to blood collected in blood banks, to chelate
the calcium ions and retard clotting.
[PJC]