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Samarium-sulfur-metal organic skeleton material with fluorescent bar code identification as well as preparation method and application thereof

A metal-organic framework and barcode recognition technology, applied in the chemical industry, can solve the problems of inaccurate detection results, poor detection efficiency or detection sensitivity, and narrow measurement range, and achieve the effect of improving optical performance.

Inactive Publication Date: 2018-12-14
DONGGUAN UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the performance of the above-mentioned materials is unstable when the measurement range is narrow, the measurement concentration, the detection efficiency or the detection sensitivity are poor. Inaccurate

Method used

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  • Samarium-sulfur-metal organic skeleton material with fluorescent bar code identification as well as preparation method and application thereof
  • Samarium-sulfur-metal organic skeleton material with fluorescent bar code identification as well as preparation method and application thereof
  • Samarium-sulfur-metal organic skeleton material with fluorescent bar code identification as well as preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0039] A fluorescent barcode identification material, the chemical composition of the fluorescent barcode identification material is: (H 3 O)[Sm(pipzdtc) 2 ]·1.5(H 2 O)·2.5(CH 3 NO)(Sm-S-MOFs), where pipzdtc is piperazine 1,4-dithiocarbamate.

[0040] The preparation method of the above-mentioned fluorescent barcode identification material is as follows:

[0041] S1, the SmCl 3 ·6H 2 O (0.1mmol, 0.052g) was dissolved in 0.5mL formamide to form solution A;

[0042] S2, sodium bisdithiocarbamate Na 2 (pipzdtc) (0.1mmol, 0.071g) was dissolved in 0.5mL deionized water with stirring to form solution B;

[0043] S3. Add solution B to solution A through a constant flow pump under stirring conditions, and the dropping speed of the constant flow pump is 5-10ml h -1 ;

[0044] S4, after the end of the mixing reaction, a large amount of light orange crystal material is rapidly produced. The resulting crystalline material was centrifuged and washed with anhydrous methanol. Vacu...

Embodiment 2

[0050] Based on Example 1, a series of isomorphic doped samarium-sulfur-metal organic framework materials Sm prepared for fluorescence detection in the visible range x Eu y -S-MOFs are approached as follows:

[0051] S1. According to the molar ratio of samarium salt: europium salt is x:y, wherein the value range of x in the formula is 0.1≤x≤0.9, and the value range of y is 0.1≤y≤0.9, dissolved in 0.5mL formamide , forming solution A;

[0052] S2, sodium bisdithiocarbamate Na 2 (pipzdtc) (0.1mmol, 0.071g) was dissolved in 0.5mL deionized water with stirring to form solution B;

[0053] S3. Add solution B to solution A through a constant flow pump under stirring conditions, and the dropping speed of the constant flow pump is 5-10ml h -1 ;

[0054] S4, after the end of the mixing reaction, a large amount of light orange crystal material is rapidly produced. The resulting crystalline material was centrifuged and washed with anhydrous methanol. vacuum-dried to obtain Sm x E...

Embodiment 3

[0056] Based on Example 1, a series of isomorphic doped samarium-sulfur-metal organic framework materials Sm prepared for fluorescence detection in the visible range x Tb y -S-MOFs are approached as follows:

[0057] S1. According to the molar ratio of samarium salt: terbium salt is x:y, wherein the value range of x in the formula is 0.1≤x≤0.9, and the value range of y is 0.1≤y≤0.9, dissolved in 0.5mL formamide , forming solution A;

[0058] S2, sodium bisdithiocarbamate Na 2 (pipzdtc) (0.1mmol, 0.071g) was dissolved in 0.5mL deionized water with stirring to form solution B;

[0059] S3. Add solution B to solution A through a constant flow pump under stirring conditions, and the dropping speed of the constant flow pump is 5-10ml h -1 ;

[0060] S4, after the end of the mixing reaction, a large amount of light orange crystal material is rapidly produced. The resulting crystalline material was centrifuged and washed with anhydrous methanol. vacuum-dried to obtain Sm x Tb...

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Abstract

The invention relates to a samarium-sulfur-metal organic skeleton material with fluorescent bar code identification as well as a preparation method and application thereof. The chemical composition ofthe samarium-sulfur-metal organic skeleton material is (H3O)[SmxLny(pipzdtc)2]*1.5(H2O)*2.5(CH3NO)(SmxLny-S-MOFs), wherein in the formula, pipzdtc is 1,4-piperazine dithiocarbamate, Ln is one or moreof Eu, Tb or Nd, x is more than or equal to 0.1 and less than or equal to 1.0, and y is more than or equal to 0 and less than or equal to 0.9. The preparation method of the fluorescent bar code identification material is simple, low in raw material cost, mild and unharsh in reaction condition, high in repeatability and capable of realizing mass production. The fluorescent bar code identificationmaterial prepared by the method is suitable for detection of fluorescence which covers visible and near infrared ranges simultaneously, is wide in detection range, is different from the past fluorescent bar code material capable of detecting single range, is more accurate in detection and can popularize larger-range application.

Description

technical field [0001] The invention belongs to the technical field of chemical industry, and in particular relates to a samarium-sulfur-metal organic framework material with fluorescent barcode identification and its preparation method and application. Background technique [0002] Rare earth near-infrared fluorescent barcode identification materials have the characteristics of sharp characteristic emission peaks, good photostability and low toxicity. In recent years, the application value of rare earth near-infrared fluorescent materials in optical fiber communication, laser system, biological analysis sensor and biological imaging has become increasingly prominent, which has attracted great attention of researchers; especially rare earth near-infrared fluorescent materials have developed into a kind of Emerging fluorescent labeling materials and promising alternatives to organic dyes and quantum dots for bioanalysis and medical imaging. [0003] Fluorescent probes based ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C07F5/00C09K11/06G01N21/64
CPCC07B2200/13C07F5/003C09K11/06C09K2211/182G01N21/643
Inventor 刘丹张新民王严杰
Owner DONGGUAN UNIV OF TECH
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