Wu L, Chung Y. Replacement of Hazardous Chromium Impregnating Agent from Silver/Copper/Chromium-Impregnated Active Carbon Using Triethylenediamine to Remove Hydrogen Sulfide, Trichloromethane, Ammonia, and Sulfur Dioxide. Journal of the Air & Waste Management Association. 2009 Mar;59(3):258–65. doi: 10.3155/1047-3289.59.3.258.
Replacement of Hazardous Chromium Impregnating Agent from Silver/Copper/Chromium-Impregnated Active Carbon Using Triethylenediamine to Remove Hydrogen Sulfide, Trichloromethane, Ammonia, and Sulfur Dioxide