title: Analysis of reduced phosphorus in samples of environmental interest.
abstract: The combination of ion chromatography (IC) and inductively coupled plasma emission spectroscopy (ICP-ES) was used forthe sensitive and specific detection of hypophosphite (PO2), phosphite (PO3), methylphosphonic acid (MPA), and phosphate (PO4). Application of this technique to a wide range of environmental samples proved that reduced phosphorus was present in some situations including process water from thermal phosphorus plants, drinking water contacting cast iron, and phosphorus corrosion inhibitor used in water treatment and in sewage wastewater. Preliminary testing did not detect high concentrations of reduced phosphorus and phosphine in situations where it was previously reported to be very important, including anaerobic digesters in wastewater treatment plants. The new IC-ICP-ES technique is a promising tool for use in corrosion and soil research where phosphites are likely to be present.
authors.affiliation: Department of Civil and Environmental Engineering, Virginia Polytechnic Institute and State University, Blacksburg, Virginia 24061, USA.
authors.forename: Siyuan C
authors.initials: SC
authors.lastname: Morton
authors.forename: Dietmar
authors.initials: D
authors.lastname: Glindemann
authors.forename: Xiaorong
authors.initials: X
authors.lastname: Wang
authors.forename: Xiaojun
authors.initials: X
authors.lastname: Niu
authors.forename: Marc
authors.initials: M
authors.lastname: Edwards
mesh_terms: D002852:Chromatography, Ion Exchange / Q000379:methods; D004784:Environmental Monitoring / Q000379:methods* / Q000706:statistics & numerical data*; D004785:Environmental Pollutants / Q000032:analysis*; D009864:Ontario; D009943:Organophosphorus Compounds / Q000032:analysis*; D013054:Spectrophotometry, Atomic / Q000379:methods; D014481:United States; D014865:Waste Disposal, Fluid / Q000706:statistics & numerical data; D014866:Waste Products / Q000032:analysis
chemical_list: D004785:Environmental Pollutants; D009943:Organophosphorus Compounds; D014866:Waste Products