Reagent for detecting mercury ion in water and its preparation method

A technology for chemical reagents and water detection, applied in the field of chemical reagents, can solve problems such as the inability of optical chemical sensors of mercury ions to be practical, and achieve the effect of expanding the scope of use, high selectivity, and rapid detection
CN100360932CInactive Publication Date: 2008-01-09XIAMEN UNIV
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
XIAMEN UNIV
Publication Date
2008-01-09
Estimated Expiration
Not applicable · inactive patent

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Abstract

The present invention relates to a chemical reagent for detecting mercury ion in water and its preparation method. Said invention provides the structural formula of said reagent, and its preparation method includes the following steps: firstly, synthesizing rhodamine hydrazide, adding rhodamine dye in container, dissolving by using organic solvent, adding hydrazine hydrate, heating to make reflux reaction until the rhodamine dye colour is eliminated, filtering, washing the obtained solid by using water to obtain rhodamine hydrazide compound, adding organic solvent to dissolve said compound, adding aryl isothiocyanate, heating mixture and making reflux reaction, removing organic solvent, using column chromatography to make separation so as to obtain target product.
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Description

technical field

[0001] The invention relates to a chemical reagent, in particular to a highly selective chemical reagent capable of qualitatively, semiquantitatively and quantitatively detecting mercury ions in water and a preparation method thereof. Background technique

[0002] Mercury is a chemical substance with severe physiological toxicity. Due to its persistence, easy migration and high bioaccumulation, it has become one of the most concerned environmental pollutants in the world. On February 3, 2003, the United Nations Environment Program (UNEP) published a report on "Global Mercury Status Assessment" in Nairobi. The report pointed out that since the industrial revolution, the content of mercury in the global atmosphere, water and soil has increased by about 3 times, and the content of mercury near industrial areas is even higher.

[0003] Mercury is widely used in various industrial production processes based on its unique chemical and physical properties, such as ...

Claims

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