Record Display for the EPA National Library Catalog


Main Title Analytical Method for Total Heavy Metal Complexing Agents in Water and Its Application to Water Quality Studies.
Author Manaha, Stanley E. ; Smit, Michael J. ; Jone, David ; Harla, Sandra ; Kunke, Robert ;
CORP Author Missouri Water Resources Research Center, Columbia.
Year Published 1973
Report Number DI-14-31-0001-3825; OWRR-A-056-MO; 02658,; A-056-MO(1)
Stock Number PB-226 322
Additional Subjects Chelating agents ; Cyanides ; Chemical analysis ; Ligands ; Water pollution ; Chemical analysis ; Copper organic compounds ; Complex compounds ; EDTA ; Metals ; Spectroscopic analysis ; Water analysis ; Sensitivity ; Surface waters ; Atomic absorption spectroscopy ; Water pollution detection ; Acetic acid/nitrilo-tri
Library Call Number Additional Info Location Last
NTIS  PB-226 322 Some EPA libraries have a fiche copy filed under the call number shown. 07/26/2022
Collation 16p
The report describes the development of several methods of analysis for low levels of complexing agents, particularly chelating agents. The first method developed, was an atomic absorption analysis of strong heavy metal chelating agents. This method is based upon the fact that when copper ion is added to a water sample and the pH adjusted to 10, the only copper that remains in solutioo is that which is in a complexed or chelated form. The method was used on a number of natural water samples. The method was extended to the analysis of cyanide ion. A new method was developed in which the copper is solublized from a copper-containing chelating ion exchange resin. This method is much more rapid than the first method described, and it is applicable to automated procedures and as a detection system for chelating agents separated by liquid chromatography.