Sodium tetraphenylborate-based enantiomer potential sensor and application of enantiomer potential sensor in detection of valinemethyl ester

A technology of sodium tetraphenyl borate and potential sensor, applied in the direction of electrochemical variables of materials, etc., can solve the problems such as no public reports of sodium tetraphenyl borate, 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

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Problems solved by technology

[0005] So far, there is no public report on the enantiopotential sensor based on sodium tetraphenylborate and its application in the detection of valine methyl ester

Method used

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  • Sodium tetraphenylborate-based enantiomer potential sensor and application of enantiomer potential sensor in detection of valinemethyl ester
  • Sodium tetraphenylborate-based enantiomer potential sensor and application of enantiomer potential sensor in detection of valinemethyl ester
  • Sodium tetraphenylborate-based enantiomer potential sensor and application of enantiomer potential sensor in detection of valinemethyl ester

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] Weigh 4 parts of sodium tetraphenylborate, 64 parts of plasticizer "o-NPOE" and 32 parts of PVC in parts by weight, and dissolve them in 600 parts of tetrahydrofuran; Unfold and place at room temperature for 24 hours to obtain a PVC film; stick the prepared PVC film 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 tetrahydrofuran solution with a PVC concentration of 8%, and place it for 10 min , after the solvent is completely volatilized, the KCl filling liquid 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] Example 1 was repeated with the following differences: the parts by weight of the PVC film component consisted of: 3 parts of sodium tetraphenylborate, 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 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 valinemethyl ester. The sodium tetraphenylborate-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<-1>, the slope is -47mV dec<-1>, the LOD(limit of detection) is 3.311*10<-4> mol L<-1>, the electrode enables chiral detection on valinemethyl ester, and the antipodal selective coefficient 1g(img file='DDA0000439081610000011.TIF' wi='160' he='71' /) is -2.36. The sodium tetraphenylborate-based enantiomer potential sensor and the application of the enantiomer potential sensor in detection of valinemethyl 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 enantiopotential sensor based on sodium tetraphenylborate 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; two enantiomers have equivalent or simi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N27/26G01N27/30
Inventor 王帮进段爱红
Owner YUNNAN NORMAL UNIV
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