Phosphorescence chemical sensor and application thereof

A photochemical sensor and chemical sensor technology, applied in phosphorescent chemical sensors and their application fields, can solve the problems of interference, low sensitivity, complex synthesis, etc., and achieve the effects of good solubility and high detection sensitivity
CN101776602AInactive Publication Date: 2010-07-14SUN YAT SEN UNIV
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
SUN YAT SEN UNIV
Publication Date
2010-07-14
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention discloses a phosphorescence chemical sensor and an application thereof. The phosphorescence chemical sensor is a compound based on an iridium composition containing a main ligand and an auxiliary ligand, wherein the main ligand is 2-phenylpyridine, and the auxiliary ligand is a dithio-carbamic acid derivate. The structure general formula of the phosphorescence chemical sensor is shown in a formula I. The phosphorescence chemical sensor achieves the goal of detecting metal ions by the color change of the solution or the film of the sensor, the change of an ultraviolet visible absorption spectrum and the change of a phosphorescence emission spectrum. The phosphorescence chemical sensor has the characteristics of the high phosphorescence response speed and big amplitude, is easy to differentiate from the fluorescence background and can be identified by naked eyes. The sensor has high identification sensitivity on the metal ions and high stability, and thereby, the sensor can be applied to the detection of the metal ions in various environments.
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Description

technical field

[0001] The invention relates to an iridium complex, in particular to a phosphorescent chemical sensor based on the iridium complex and its application. Background technique

[0002] Mercury is one of the most threatening and toxic metal elements to human body and environment. There are three main forms of mercury in nature: elemental mercury, inorganic mercury and organic mercury. Mercury and its pollutants can be widely distributed through various natural or man-made processes such as volcanic eruptions, mining, and solid waste incineration, thereby polluting a large amount of water, air, and soil, and through the action of bacteria in the environment, mercury Both elemental and mercury ions can be converted into methylmercury, which can be further enriched in the human body through the food chain even in very low concentrations. Mercury pollution in the environment mainly comes from mercury used in industry, such as mercury used as a catalyst in the chemic...

Claims

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