A highly sensitive and selective fluorescent sensor for detection of copper ions based on natural Isorhamnetin from Ginkgo leaves
作者： Shilong Yang , Weina Jiang , Fengyi Zhao , Li Xu , Yuanyuan Xu
DOI: 10.1016/J.SNB.2016.06.003
关键词:
摘要: Abstract A natural isorhamnetin-based fluorescent sensor for highly sensitive and selective detection of copper ions had been studied. The isorhamnetin (Iso) after binding to Cu 2+ in pH 7.40 buffer solution generated quenching emission intensity. constant value was obtained 1.79 × 10 6 . Iso can be applied the quantification ion with a linear range 1.0 × 10 −8 –1.9 × 10 −6 mol L −1 , limit 4.0 × 10 −9 reproducibility is good. showed high selectivity toward As result, successfully determination rivers, lakes, vegetables fruits good recovery.
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