Journal
ANALYST
Volume 137, Issue 6, Pages 1436-1439Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/c2an16155a
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Funding
- National Basic Research Program of China [2011CB936001]
- National Natural Science Foundation of China [20877090, 50938004, 21077123, 20732001]
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A turn-on fluorescence probe for Cu2+ detection has been reported according to a Cu2+ triggered spirolactam ring-opening reaction. The probe is a double-responsive fluorescent and colorimetric Cu2+-specific sensor in aqueous solution containing 20% of acetonitrile with high selectivity and excellent sensitivity (limit of detection is 12 mu g L-1). Furthermore, the significant color changes visible to the naked eye at the concentration of 3 mu M (ca. 0.20 mg L-1) are about ten times lower than the WHO (World Health Organization) recommended level (2.0 mg L-1) for Cu2+ ions in drinking water.
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