Tetra(4-tert-butyl-phenyl)potassium borate-based enantiomer potential sensor and application of enantiomer potential sensor in detection of leucinemethyl ester

A potential sensor, tert-butyl phenyl technology, applied in instruments, measuring devices, scientific instruments, etc., can solve problems such as no public reports on potential sensors, and achieve the effects of low cost, wide measurement range and fast analysis speed

Inactive Publication Date: 2014-04-23
YUNNAN NORMAL UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] So far, there is no public report on the enantiopotential sensor based on tetrakis(4-tert-butylphenyl)potassium borate and its application in the detection of leucine methyl ester

Method used

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  • Tetra(4-tert-butyl-phenyl)potassium borate-based enantiomer potential sensor and application of enantiomer potential sensor in detection of leucinemethyl ester
  • Tetra(4-tert-butyl-phenyl)potassium borate-based enantiomer potential sensor and application of enantiomer potential sensor in detection of leucinemethyl ester
  • Tetra(4-tert-butyl-phenyl)potassium borate-based enantiomer potential sensor and application of enantiomer potential sensor in detection of leucinemethyl ester

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] Weigh 4 parts by weight of tetrakis (4-tert-butylphenyl) potassium borate, 64 parts of plasticizer "o-NPOE" and 32 parts of PVC, and dissolve them in 600 parts of tetrahydrofuran; when each component is completely dissolved, put The solution was poured on a glass plate and unfolded naturally, and a PVC film was obtained after standing at room temperature for 24 hours; the prepared PVC film was glued to a glass with an inner diameter of 8 mm, an outer diameter of 10 mm, and a length of 10 cm with a tetrahydrofuran solution with a PVC concentration of 8%. One end of the PVC tube was placed for 10 minutes, and after the solvent was completely volatilized, the KCl filling solution was poured into the tube, and the Ag / AgCl internal reference electrode was inserted to obtain a PVC film electrode; the PVC film electrode and calomel electrode were combined to form the required enantiomer potentiometric sensor. The sensor expression is as follows:

[0038] Hg-Hg 2 Cl 2 ︱KCl(s...

Embodiment 2

[0040] Example 1 was repeated with the following differences: the parts by weight of the PVC film component consisted of: 3 parts of tetrakis(4-tert-butylphenyl)potassium borate, 64.7 parts of plasticizer "DBS" and 32.3 parts of PVC.

Embodiment 3

[0042] Example 1 was repeated with the following differences: 3 parts potassium tetrakis(4-tert-butylphenyl)borate, 65 parts plasticizer "DOS" and 32.5 parts PVC.

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Abstract

The invention discloses a tetra (4-tert-butyl-phenyl)potassium borate-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 tetra(4-tert-butyl-phenyl), 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 -57mV dec<-1>, the LOD(limit of detection) is 4*10<-4> mol L<-1>, the electrode enables chiral detection on leucinemethyl ester, and the antipodal selective coefficient 1g(img file='DDA0000439034530000011.TIF' wi='96' he='72' / ) is -1.93. The tetra(4-tert-butyl-phenyl)potassium borate-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 tetrakis(4-tert-butylphenyl)potassium borate. At the same time, the present invention also relates to the application of the enantiopotential sensor based on tetrakis(4-tert-butylphenyl)potassium borate 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; ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N27/60
Inventor 段爱红王帮进
Owner YUNNAN NORMAL UNIV
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