1,4-Dioxane was added as an compound to the environmental quality for public waters and groundwater as a water quality standard for the protection of human health (announced and enforced November 30, 2009).
1,4-Dioxane is not retained on reversed-phase solid phases, such as C18 and SDB, because it is highly water-soluble. Therefore, solid phase extraction is carried out using activated carbon with high retention capacity in reversed phase distribution.