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Potassium tetrakis(4-tert-butylphenyl)borate-based enantiopotential sensor and its application in the detection of valine methyl ester

A technology of valine methyl ester and potential sensor, which is applied in the direction of instruments, measuring devices, scientific instruments, etc., can solve the problems of no potential sensor public reports, etc., and achieve the effect of low cost, fast analysis speed and simple equipment

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 is no public report on the enantiopotential sensor based on tetrakis(4-tert-butylphenyl)potassium borate and its application in the detection of valine methyl ester

Method used

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  • Potassium tetrakis(4-tert-butylphenyl)borate-based enantiopotential sensor and its application in the detection of valine methyl ester
  • Potassium tetrakis(4-tert-butylphenyl)borate-based enantiopotential sensor and its application in the detection of valine methyl ester
  • Potassium tetrakis(4-tert-butylphenyl)borate-based enantiopotential sensor and its application in the detection of valine methyl 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 being placed at room temperature for 24 hours; the prepared PVC film was glued to 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(satd.)|Tes...

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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PUM

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Abstract

The invention discloses an enantiomer potential sensor based on potassium tetrakis(4-t-butylphenyl)borate and application of the enantiomer potential sensor to methyl valinate detection. The enantiomer potential sensor is made by taking potassium tetrakis(4-t-butylphenyl)borate, a plasticizer and PVC, dissolving in tetrahydrofuran so as to prepare a PVC membrane, drying in air, cutting and getting a sheet and adhering to one end of a PVC pipe perfused with an internal perfusion fluid, inserting Ag / AgCl internal reference electrode to obtain a PVC membrane electrode, and combining with a calomel electrode for forming the enantiomer potential sensor. The enantiomer potential sensor is applied to detect enantiomers of methyl valinate. The linearity range is 10<-4>-10<-1> mol*L<-1>, the gradient is -39.5 mVdec<-1>, the detection limit is 3.548*10<-4> mold*L<-1>, the electrodes can help to perform chiral detection on methyl valinate, and the enantioselectivity coefficient is -2.20, wherein the calculation expression of the enantioselectivity coefficient is shown in the specification. The enantiomer potential sensor provided by the invention has the advantages of being rapid, economic, environment-friendly, simple in equipment, convenient to operate and applicable to on-site detection.

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 valine 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; t...

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
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