A new method for visual detection of pyrophosphate

doi:10.3969/j.issn.1000-1565.2017.02.007

Abstract

Abstract: Pyrophosphate(PPi)plays an important role in the biological and environmental systems.Therefore,a simple,rapid,high sensitivity determination of the pyrophosphate is of great significance.A new colorimetric strategy for the visual detection of pyrophosphate by the naked eye under the irradiation of a UV lamp was developed on the basis of Cu²⁺-induced fluorescence band shift of CdTe quantum dots(QDs)and the strong interaction between PPi and Cu²⁺. PPi can be visually detected in the range of 5 μmol/L to 50 μmol/L.Furthermore,this method was of good specificity and it also can be used for the detection of the pyrophosphatase activity.

Key words: pyrophosphate, CdTe quantum dots, Cu²⁺, visual detection

CLC Number:

SU Huijuan,ZHAO Xudong,ZHANG Li,FAN Wenjie,WANG Yucong,JIA Hongxia. A new method for visual detection of pyrophosphate[J]. Journal of Hebei University (Natural Science Edition), 2017, 37(2): 147-154.

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