Detection of preparation of manganese ions probe based on naked eye visual colorimetry and application

A technology of visual colorimetry and manganese ions, which is applied in the field of analytical chemical detection, can solve the problems of cumbersome and expensive analysis methods, and achieve the effects of good selectivity, simple synthesis route and high sensitivity

Inactive Publication Date: 2013-03-13
JIANGNAN UNIV
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  • Application Information

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Problems solved by technology

However, these analytical methods are expensive and cumbersome in practical application, and often require special experimental instruments

Method used

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  • Detection of preparation of manganese ions probe based on naked eye visual colorimetry and application
  • Detection of preparation of manganese ions probe based on naked eye visual colorimetry and application
  • Detection of preparation of manganese ions probe based on naked eye visual colorimetry and application

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Embodiment

[0026] (1) Add dropwise the ethanol solution (100ml) of 1.2g ethylenediamine to 7.73g while stirring, in the absolute ethanol solution (80ml) of 4-diethylamino salicylaldehyde, reflux after stirring at room temperature for 15 minutes Hour. The solvent was removed, and recrystallized from ethanol three times to obtain N,N-bis(4-diethylaminosalicylidene)ethylenediamine product.

[0027] (2) Take the probes in (1) and dissolve them in the HEPES buffer solution with a pH of 8, and configure the concentration to be 20×10 -6 M solution, and as a stock solution. Take 15 parts of the stock solution with a volume of 3ml, add equal volumes respectively, and the concentrations are (1) 1×10 -6 M; (2) 2×10 -6 M; (3) 3×10 -6 M; (4) 4×10 -6 M; (5) 5×10 -6 M; (6) 6×10 -6 M; (7) 7×10 -6 M; (8)8×10 -6 M; (9) 9×10 -6 M; (10) 10×10 -6 M; (11) 11×10 -6 M; (12) 12×10 -6 M; (13) 13×10 -6 M; (14) 14×10 -6 M; (15) 15×10 -6 M;(16)0×10 -6 M manganese ion solution. Measure the change of...

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Abstract

The invention discloses a probe-N,N-dis(4-diethylamine salicylidene)ethylenediamine for detecting manganese ions in water quality based on a naked eye visual colorimetry and a manganese ions detection kit and a test paper based on the probes. The manganese ions probe can be synthesized by one step reaction, a detection mechanism is based on the complexing reaction, and the naked eye visual colorimetry is used for detecting the manganese ions in a liquid to be measured. The manganese ions detection kit comprises a reagent storage liquid 1 and a reagent storage liquid 2, wherein the reagent storage liquid 1 is a HEPES buffer, and the reagent storage liquid 2 is a solution of N,N-dis(4-diethylamine salicylidene)ethylenediamine. The manganese ions detection test paper is composed of the N,N-dis(4-diethylamine salicylidene)ethylenediamine and a solid carrier. The invention can realize a rapid quantitative or semi-quantitative detection with high sensitivity and high selectivity for microscale manganese ions in the water quality. The probe has the advantages of simple synthesis route and low cost, and has large application prospect in the environmental protection field.

Description

technical field [0001] The present invention relates to the preparation and application of a probe for detecting manganese ions based on naked-eye visual colorimetry, in particular to the synthesis of N,N-bis(4-diethylaminosalicylidene)ethylenediamine The preparation and application of a manganese ion detection kit and test paper based on the probe belong to the technical field of analytical chemistry detection. technical background [0002] Manganese is one of the essential trace elements for the human body, but excessive intake of manganese can easily cause manganese poisoning. Especially in fields such as electric welding, mining, and dry battery production, it is easy to inhale manganese for a long time and cause chronic manganese poisoning. Manganese poisoning has the manifestations of neurasthenia syndrome such as dizziness, headache, easy fatigue, sleep disturbance and forgetfulness, as well as symptoms such as limb pain, weakness and heaviness of lower limbs. In se...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N21/78
Inventor 刘晓亚
Owner JIANGNAN UNIV
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