2[3]U.S.Environmental Protection Agency.U.S.EPA Method 8315,"Determination of Carbonyl Compounds by High-Performance Liquid Chromatography,"November 1992.
3[4]U.S.Environmental Protection Agency.U.S.EPA Method 554"Determination of Carbonyl Compounds in Drinking Water by Dinitrophenylhydrazine Derivatization and High -Perfonnance Liquid Chromatography (HPLC)," August 1992.