NEMI Method Summary


Method Summary Information

Method Number:

9056A

Media:

VARIOUS

Revision:

Revision 1, November 2000

Method Source:

U.S. EPA Office of Solid Waste

Subcategory:

INORGANIC

Analytes in this method

Official Name:

Determination Of Inorgainic Anions By Ion Chromatography

Descriptive Name

Anion Chromatography Method

Source Info:

U.S. EPA Office of Solid Waste (OSW) Methods Team
Ariel Rios Bldg. (5307W)
1200 Pennsylvania Ave. NW
Washington, DC 20460
Phone: 703-308-8855
Fax: 703-308-0511

Citation:

SW-846 Update IVB

51305

Byte file

Brief Method
Summary:

A small volume (2-3 mL) of sample is injected into an ion chromatograph to flush and fill a constant volume sample loop. The sample is then injected into a stream of carbonate-bicarbonate eluent of the same strength as the sample. The samples are passed through three ion exchange columns (with different functionalities), and compounds are identified by retention time, and quantitated by peak height or area (by comparison with a standard calibration curve).

Scope And
Application:

This method is applicable to the determination of chloride, fluoride, bromide, nitrate, phosphate, and sulfate in the collection solutions from the bomb combustion of solid waste samples, as well as all water samples.

Applicable
Conc Range:

0.2 - 100mg/L. Ranges differ for each analyte. This range is taken from the lowest and highest limit of the analytes listed in the method.

Interferences:

QC Requirements:

Mid-range calibration standard every 10 injections; sample duplicate (1 in every 10 samples), MS

Sample Handling:

Collect the samples using a sampling plan that addresses the considerations discussed in Chapter 9 of this manual. Preserve the samples by refrigeration at 4 degrees C. Analyze the samples as soon as possible after collection.

Max Holding Time:

ASAP

Relative Cost:

$51 to $200

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Method Summary Information