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Enantiopotential Sensor Based on Sodium Tetraphenylborate and Its Application in the Detection of Leucine Methyl Ester

A technology of sodium tetraphenyl borate and potential sensor, which is applied in the directions of instruments, measuring devices, scientific instruments, etc., can solve problems such as no public reports on sodium tetraphenyl borate, and achieves a low cost, wide measurement range and convenient operation. Effect

Inactive Publication Date: 2016-01-20
YUNNAN NORMAL UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] So far, there have been no public reports on the enantiopotential sensor based on sodium tetraphenylborate and its application in the detection of leucine methyl ester

Method used

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  • Enantiopotential Sensor Based on Sodium Tetraphenylborate and Its Application in the Detection of Leucine Methyl Ester
  • Enantiopotential Sensor Based on Sodium Tetraphenylborate and Its Application in the Detection of Leucine Methyl Ester
  • Enantiopotential Sensor Based on Sodium Tetraphenylborate and Its Application in the Detection of Leucine Methyl Ester

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] Weigh 4 parts of sodium tetraphenylborate, 64 parts of plasticizer "DBS" and 32 parts of PVC in parts by weight, and dissolve them in 600 parts of tetrahydrofuran; when each component is completely dissolved, pour the solution on a glass plate to unfold naturally, Place it at room temperature for 24 hours to obtain a PVC film; the prepared PVC film is glued to one end of a PVC pipe with an inner diameter of 8 mm, an outer diameter of 10 mm and a length of 10 cm with a THF solution of 8% PVC concentration, and place it for 10 min. After the solvent is completely volatilized, the KCl filling solution is poured into the tube, and the Ag / AgCl internal reference electrode is inserted to obtain a PVC film electrode; the PVC film electrode and calomel electrode are combined to form the required enantiopotential sensor. The sensor expression is as follows:

[0038] Hg-Hg 2 Cl 2 ︱KCl(satd.)|Test solution︱PVC film︱0.1mol L -1 KCl|AgCl-Ag.

Embodiment 2

[0040] Repeat Example 1 with the following differences: the parts by weight of the PVC film component consist of: 3 parts of sodium tetraphenylborate, 64.7 parts of plasticizer "o-NPOE" and 32.3 parts of PVC.

Embodiment 3

[0042] Example 1 was repeated with the following differences: 3 parts sodium tetraphenylborate, 65 parts plasticizer "DOS" and 32.5 parts PVC.

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Abstract

The invention discloses a sodium tetraphenylborate-based enantiomer potential sensor and an application of the enantiomer potential sensor in detection of leucinemethyl ester. The tetra(4-tert-butyl-phenyl)potassium borate-based enantiomer potential sensor is characterized in that sodium tetraphenylborate, a plasticizer and PVC are dissolved in tetrahydrofuran to prepare a PVC membrane, a step of air drying is carried out, one sheet of the PVC membrane is sliced to paste on one end of a PVC pipe, a filling liquid is injected in the pipe, an Ag / AgCl internal reference electrode is inserted to obtain a PVC membrane electrode, and the membrane electrode forms the enantiomer potential sensor with a calomel electrode. The enantiomer potential sensor is used for detecting a leucinemethyl ester enantiomer. According to the invention, the linearity range is 10<-4>-10<-1> mol L<-1>, the slope is -36.5mV dec<-1>, the LOD(limit of detection) is 1.585*10<-4> mol L<-1>, the electrode enables chiral detection on leucinemethyl ester, and the antipodal selective coefficient 1g(img file='DDA0000439000340000011.TIF' wi='158' he='72' / ) is -2.11. The sodium tetraphenylborate-based enantiomer potential sensor and the application of the enantiomer potential sensor in detection of leucinemethyl ester have the advantages of rapidity, economy, environmental protection, simple equipment and convenient operation, and can be used for on-site determination.

Description

technical field [0001] The invention belongs to the technical field of optical enantiomer detection, in particular to an enantiomer potential sensor based on tetraphenyl sodium borate. At the same time, the present invention also relates to the application of the enantiomer potential sensor based on sodium tetraphenylborate in the detection of leucine methyl ester. Background technique [0002] The two enantiomers of chiral compounds not only have different optical properties and physical and chemical properties, but also have different biological activities. For example, in pharmacology, the enantiomers of chiral drugs are different, and their biological activities, toxicity, metabolism and efficacy are completely different. The following situations may exist: only one enantiomer has pharmacological activity, while the other has no significant pharmacological effect; among the enantiomers, one is active and the other can have antagonism; two enantiomers have equivalent or...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N27/00
Inventor 段爱红王帮进
Owner YUNNAN NORMAL UNIV