The haloacetic acid (HAA) analysis methods
approved by the U.S. Environmental Protection Agency
involve extraction and derivatization of HAAs (typically
to their methyl ester form) and analysis by gas chromatography
(GC) with electron capture detection (ECD).
Concerns associated with these methods include the time
and effort of the derivatization process, use of potentially
hazardous chemicals or conditions during methylation,
poor recoveries because of low extraction efficiencies for
some HAAs or matrix effects from sulfate, and loss of
tribromoacetic acid because of decarboxylation.
The HAA analysis method introduced here uses
solid-phase extraction (SPE) followed by capillary
electrophoresis (CE) analysis. The method is accurate,
reproducible, sensitive, relatively safe, and easy
to perform, and avoids the use of large amounts of
solvent for liquid-liquid extraction and the
potential hazards and hassles of derivatization. The
cost of analyzing HAAs using this method should be
lower than the currently approved methods, and
utilities with a GC/ECD can perform the analysis
in-house. Includes 43 references, tables, figures.
| Edition : | Vol. 99 - No. 3 |
| File Size : | 1
file
, 1.7 MB |
| Note : | This product is unavailable in Ukraine, Russia, Belarus |
| Number of Pages : | 12 |
| Published : | 03/01/2007 |
