Standard Methods: 3113 B: Metals in Water by GFAA
Official Method Name
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Metals in Water by Electrothermal Atomic Absorption Spectrometry |
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Current Revision
| Standard Methods Online |
Media
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WATER |
Instrumentation
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Graphite Furnace-Atomic Absorption Spectrometer |
Method Subcategory
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Inorganic |
Method Source
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Citation
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Brief Method Summary
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The sample is prepared using an appropriate metals digestion procedure, and the digestate is analyzed uing a graphite furnace atomic absorption (GFAA) spectrometer to quantitate metals in the sample. |
Scope and Application
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Electrothermal atomic absorption permits determination of most metallic elements in water with sensitivity and detection limits from 20 to 1000 times better than those of flame techniques. |
Applicable Concentration Range
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Varies with analyte. |
Interferences
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(1) Molecular absorption can occur when components of the sample matrix volatilize during atomization resulting in broadband absorption. (2) Chemical and matrix interferences can occur, but may be mitigated by using matrix modifiers. |
Quality Control Requirements
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See Standard Methods Section 3020. |
Sample Handling
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See Method 3030-B for sample collection information. |
Maximum Holding Time
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6 months |
Relative Cost
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$201 to $400 |
Sample Preparation Methods
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