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Signal enhancement of haloacetic acids by 2-(2-methoxyethoxy)ethanol. Chromatograms of analytes before (A) and after (B) addition of 2-MEE. Analytes were determined after extraction from control serum spiked with chemical standards: 2 nmol/ml serum for DCA, 8 nmol/ml serum for TCA, and 50 nmol/ml serum for the fluorine analogues as internal standards. MA, manually integrated area of a detected peak.
