An official website of the United States government.

This is not the current EPA website. To navigate to the current EPA website, please go to www.epa.gov. This website is historical material reflecting the EPA website as it existed on January 19, 2021. This website is no longer updated and links to external websites and some internal pages may not work. More information »

Validated Test Method 6860: Perchlorate in Water, Soils and Solid Wastes Using Ion Chromatography/Electrospray Ionization/Mass Spectrometry (IC/ESI/MS or IC/ESI/MS/MS)

The following document details the method which uses ion chromatography (IC) coupled with electrospray ionization mass spectrometry (ESI/MS) or tandem mass spectrometry (MS/MS) to determine the level of perchlorate in surface water, groundwater, salt water and soil.

You may need a PDF reader to view some of the files on this page. See EPA’s About PDF page to learn more.

Validated Test Method 6860: Perchlorate in Water, Soils and Solid Wastes Using Ion Chromatography/Electrospray Ionization/Mass Spectrometry (IC/ESI/MS or IC/ESI/MS/MS) (PDF)(10 pp, 219 K, January 2007)