EPA-RCA: 9056A: Anion Chromatography Method
|
Official Method Name
|
Determination Of Inorgainic Anions By Ion Chromatography |
|---|---|
|
Current Revision
| Revision 1, November 2000 |
|
Media
|
VARIOUS |
|
Instrumentation
|
Ion Chromatography |
|
Method Subcategory
|
Inorganic |
|
Method Source
|
|
|
Citation
|
|
|
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 Concentration 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
|
|
|
Quality Control 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. |
|
Maximum Holding Time
|
ASAP |
|
Relative Cost
|
$51 to $200 |
|
Sample Preparation Methods
|
