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Indexed by:期刊论文

Date of Publication:2009-01-01

Journal:JOURNAL OF ENVIRONMENTAL MONITORING

Included Journals:SCIE、Scopus

Volume:11

Issue:2

Page Number:330-335

ISSN No.:1464-0325

Abstract:By combination of a sugar group and a rhodamine group into one molecule, a bright and specific fluorescent sensor for Hg2+ in natural water and living cells was achieved. RG1 features the high quantum efficiency for a Hg2+-bound sensor in natural water and sensitivity to environmentally relevant mercury in complex natural samples. The limit of detection of Hg2+ of 1 ppb level suggests that RG1 is capable of distinguishing between the safe and toxic levels of inorganic mercury in drinking water. RG1 also establishes excellent Hg2+-ion specificity over alkali-, alkaline-earth metals and the first-row transition metals as well as Pb2+ and Ag+. Investigation on the fluorescence imaging of Hg2+ in living cells demonstrates that RG1 might be used for monitoring Hg2+ within biological samples.