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U.S. Geological Survey sediment preparation procedures
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Description
Extraction of iron and manganese from sediments using 0.5 N HCl with hydroxylamine hydrochloride in anaerobic conditions, followed by ICP-AES analysis. This method targets metals associated with reducible phases in sediments.
Typical Equipment
- HDPE bottles
- 0.5 N HCl
- 0.25 N hydroxylamine hydrochloride
- 0.45 μm filters
- ICP-AES
Output Measurements
- extractable iron concentration
- extractable manganese concentration
