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Preparation and use method of mercury ion detection material based on aggregation-induced emission properties

A technique for aggregation-induced luminescence and detection of materials, which is applied in the direction of luminescent materials, chemical instruments and methods, and material analysis through optical means, which can solve problems such as error-prone, error-prone, and high minimum detection limits, and reach the detection line Low, responsive, and low drug consumption

Inactive Publication Date: 2020-06-02
HUAZHONG UNIV OF SCI & TECH
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  • Abstract
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  • Claims
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Problems solved by technology

However, these types have their own shortcomings. Although atomic fluorescence spectroscopy has high sensitivity, the atomization temperature is high, the instrument is expensive, and the operation is complicated; gas chromatography and cold atomic absorption spectroscopy are as complex in pretreatment and prone to errors; The dithizone spectrophotometric method, which is a colorimetric method, has cumbersome steps, is prone to errors, and has a high minimum detection limit. It needs to be tested for mercury in the sample, and it is not suitable for detecting trace mercury.

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  • Preparation and use method of mercury ion detection material based on aggregation-induced emission properties
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  • Preparation and use method of mercury ion detection material based on aggregation-induced emission properties

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Embodiment 1

[0020] The preparation method of the mercury ion detection material based on the aggregation-induced luminescence property includes: a fluorescent material (AADT) synthesis step and a target product extraction and purification step.

[0021] 1) Synthetic steps of fluorescent material (AADT): Mix 5.00g 9-anthral and 25.00ml 1,2-ethanedithiol in 125ml CHCl 3 solution; add 2.0g iodine simple substance to the mixed liquid; magnetically stir the mixed liquid for 15 minutes at room temperature; prepare 125ml of 0.1mol / L Na 2 S 2 o 3 Quickly add 125ml of 10% NaOH solution into the system to terminate the reaction, that is, synthesize the crude product of the fluorescent material (AADT);

[0022] 2) Target product extraction step: use the solution of the above terminated reaction with 150ml CHCl 3 Extract 5 times, the target product remains in the organic phase, and the water phase is the by-product phase; then the organic phase is transferred to a rotary evaporator, and the temper...

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Abstract

The invention discloses a preparation and use method of a mercury ion detection material based on aggregation-induced emission properties. The preparation method comprises the following steps: mixing9-anthraldehyde and 1, 2-ethanedithiol in a CHCl3 solution, adding elemental iodine into the mixed solution, magnetically stirring the mixture at room temperature, then, adding Na2S2O3 and a NaOH solution to terminate the reaction, and carrying out purifying to obtain the faint yellow solid mercury ion detection material. The mercury ion detection material can be used for preparing test paper fordetecting high-concentration mercury ions and handheld equipment probes for detecting trace mercury ions. The method has the advantages of being low in detection line, sensitive in reaction, good in response line type, high in anti-interference capability and small in medicament consumption.

Description

technical field [0001] The invention belongs to the technical field of environmental monitoring, in particular to a method for preparing and using a mercury ion detection material based on aggregation-induced luminescent properties. Background technique [0002] Mercury and mercury compounds are highly toxic, and the damage to the human body is related to the amount of mercury entering the body. The harm of mercury to the human body mainly involves the central nervous system, digestive system and kidneys, and also has certain effects on the respiratory system, skin, blood and eyes. The methylation of the most dangerous mercury ion in the natural environment also makes it more harmful. The organic compound of mercury formed is dimethylmercury, and just a few microliters of dimethylmercury can be lethal in contact with the skin. Moreover, mercury can accumulate in organisms and is easily absorbed by the skin, as well as the respiratory and digestive tracts. The Minamata dis...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09K11/06G01N21/64
CPCC09K11/06G01N21/643
Inventor 郭刚刘昀习诗浩王珂佘天好孙浩铭周鸣歧王宗平苗蕾冯晓楠林青山
Owner HUAZHONG UNIV OF SCI & TECH
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