Record Display for the EPA National Library Catalog


OLS Field Name OLS Field Data
Main Title Method 557: Determination of Haloacetic Acids, Bromate, and Dalapon in Drinking Water by Ion chromatography Electrospray Ionization Tandem Mass Spectrometry (IC-ESI-MS/MS). Version 1.0.
Author A. D. Zaffiro ; M. Zimmerman ; B. V. Pepich ; R. W. Slingsby ; R. F. Jack
CORP Author Environmental Protection Agency, Cincinnati, OH. Office of Ground Water and Drinking Water.
Year Published 2009
Report Number EPA 815-B-09-012
Stock Number PB2012-114401
Additional Subjects Drinking water ; Bromates ; Chemical analysis ; Ion chromatography ; Anions ; Electrospray ; Ground water ; IonizatIon ; Mass spectroscopy ; Surface water ; Water pollution detection ; Haloacetic acids ; Dalapan
Library Call Number Additional Info Location Last
NTIS  PB2012-114401 Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy. 02/21/2013
Collation 43p
Method 557 is a direct-inject, ion chromatography, negative-ion electrospray ionization, tandem mass spectrometry (IC-ESI-MS/MS) method for the determination of haloacetic acids in finished drinking water. Bromate and dalapon (2,2-dichloropropionic acid) may be measured concurrently with the haloacetic acids. Real time, chromatographic separation of common anions in drinking water (matrix elimination) is a key feature of this method. Acceptable method performance has been demonstrated for matrix ion concentrations of 320 mg/L chloride, 250 mg/L sulfate, 150 mg/L bicarbonate and 20 mg/L nitrate. Method 557 requires the use of MS/MS in Multiple Reaction Monitoring (MRM) mode to enhance selectivity. Precision and accuracy data have been generated for the detection of nine haloacetic acids, bromate, and dalapon in reagent water, synthetic sample matrix, and finished drinking water from both ground water and surface water sources. The single laboratory Lowest Concentration Minimum Reporting Level (LCMRL) has also been determined in reagent water.