Chapter A5. Section 6.4.A. Arsenic Speciation
Techniques of Water-Resources Investigations
09-A5.6.4.A
By: John R. Garbarino
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Abstract
Two sample-processing methods (field speciation and laboratory speciation) used at the USGS National Water Quality Laboratory (NWQL) are specific to sample analysis by inductively coupled plasma-mass spectrometry (ICP-MS) for determining the concentration of inorganic and organic arsenic species in a water sample. The field-speciation method requires NWQL Schedule 1729. The laboratory-speciation method requires use either of NWQL Schedule 1730, 1731, or 1732, as appropriate for study objectives. For either the field- or laboratory-speciation method, prior knowledge is needed of sample matrix-composition characteristics (that is, major-ion concentrations in filtered samples). Major-ion data are necessary to determine (1) the volume of ethylenediaminetetraacetic acid (EDTA) that will be required for sample preservation, and (2) if sample dilution is required.
| Publication type | Report |
|---|---|
| Publication Subtype | USGS Numbered Series |
| Title | Chapter A5. Section 6.4.A. Arsenic Speciation |
| Series title | Techniques of Water-Resources Investigations |
| Series number | 09-A5.6.4.A |
| DOI | 10.3133/twri09A5.6.4.A |
| Edition | Version 1.1 |
| Year Published | 2005 |
| Language | ENGLISH |
| Publisher | Geological Survey (U.S.) |
| Contributing office(s) | U.S. Geological Survey |
| Description | 18 p. |
| Larger Work Type | Report |
| Larger Work Subtype | USGS Numbered Series |
| Larger Work Title | National Field Manual for the Collection of Water-Quality Data. U.S. Geological Survey Techniques of Water-Resources Investigations, Book 9 |
| Google Analytic Metrics | Metrics page |