Standard Methods: 3113 B:  Metals in Water by GFAA

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Official Method Name
Metals in Water by Electrothermal Atomic Absorption Spectrometry
Current Revision
Standard Methods Online
Graphite Furnace-Atomic Absorption Spectrometer
Method Subcategory
Method Source
  Standard Methods
  Standard Methods Online - Standard Methods for the Examination of Water and Wastewater
Brief Method Summary
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
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
Varies with analyte.
(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
See Standard Methods Section 3020.
Sample Handling
See Method 3030-B for sample collection information.
Maximum Holding Time
6 months
Relative Cost
$201 to $400
Sample Preparation Methods