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Surface-enhanced raman spectroscopy for trace arsenic detection in contaminated water

Surface-enhanced raman spectroscopy for trace arsenic detection in contaminated water

Angewandte Chemie 47(34): 6456-6460

ISSN/ISBN: 1433-7851

PMID: 18618882

DOI: 10.1002/anie.200800776

The Langmuir–Blodgett assemblies of polyhedral Ag nanocrystals are highly active SERS substrates that can perform low-level arsenate and arsenite sensing in aqueous solutions. We achieve arsenate detection at 1 ppb— an order of magnitude below the current standard set by the WHO. Our SERS chip is robust, reproducible, highly portable, and could be easily implemented in field detection.

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Accession: 033592664

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