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EPA Method 538: Determination of Selected Organic Contaminants in Drinking Water by Direct Aqueous Injection-Liquid Chromatography/Tandem Mass Spectrometry (DAI-LC/MS/MS)

This document is included in Selected Analytical Methods for Environmental Remediation and Recovery (SAM). 

Citation:

U.S. EPA. “Method 538: Determination of Selected Organic Contaminants in Drinking Water by Direct Aqueous Injection-Liquid Chromatography/Tandem Mass Spectrometry (DAI-LC/MS/MS),” Revision 1.0. U.S. Environmental Protection Agency, Washington DC, EPA/600/R-09/149.

Description:

Analytical Method

Purpose/Objective:

EPA’s Selected Analytical Methods for Environmental Remediation and Recovery (SAM) lists this method for preparation and analysis of drinking water samples to detect and measure acephate, diisopropyl methylphosphonate (DIMP), methamidophos and thiofanox.

  • EPA Method 538: Determination of Selected Organic Contaminants in Drinking Water by Direct Aqueous Injection-Liquid Chromatography/Tandem Mass Spectrometry (DAI-LC/MS/MS) (pdf) (425.89 KB, 11/2009)

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Last updated on May 2, 2025
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