Indicators covalently bound to insoluble carriers专利检索-氧化还原介体电气元件和设备专利检索查询-专利查询网

Indicators covalently bound to insoluble carriers

阅读：20发布：2023-08-03

专利汇可以提供Indicators covalently bound to insoluble carriers专利检索，专利查询，专利分析的服务。并且Indicators insolubilized by covalent bonding to inorganic carriers for indicating the hydrogen ion concentration, oxidation-reduction state or specific ion concentration in liquid media. Since the indicators are insoluble they do not contaminate the solution tested, and they may be used repeatedly in different media. They replace the well known indicator test papers which consists of a substrate dyed with an indicator. Methods of making the indicators are also provided.，下面是Indicators covalently bound to insoluble carriers专利的具体信息内容。

权利要求

1. AN INSOLUBILIZED BOUND INDICATOR USEFUL IN DETERMINING PARAMETERS SUCH AS HYDROGEN ION CONCENTRATION (PH), OXIDATION-REDUCTION POTENTIAL OR SPECIFIC ION CONCENTRATION IN SOLUTIONS CONSISTING OF AN ORGANIC INDICATOR COVALENTLY COUPLED BY MEANS OF AN ORGANO-FUNCTIONAL SILANE COUPLING AGENT TO AN INORGANIC CARRIER HAVING AVAILABLE HYDROXYL OR OXIDE GROUPE GROUP

2. A bound indicator as claimed in claim 1 wherein said silane coupling agent is combined with said indicator by means of an alkyl linkage.

3. A bound indicator as claimed in claim 1 wherein said silane coupling agent is combined with said indicator by means of an azo linkage.

4. A bound indicator as claimed in claim 1 wherein said silane coupling agent is combined with said indicator by means of a sulfonamide linkage.

5. A bound indicator as claimed in claim 1 wherein said silane coupling agent is represented by the general formula XnSiR(4 n) in which X represents a substituted or unsubstituted aryl, alkyl or alkyl-aryl group, the substituent(s) being selected from groups which include hydroxy, lower alkoxy, amino, lower alkylamino, lower dialkylamino, alkyl, nitro, nitroso, diazo, cyano, isocyano, isothiocyano, carboxy, carbonyl, keto, halocarbonyl, sulfoxy and halosulfonyl; R represents a group which may be lower alkoxy, aryloxy or halogen; and n is one of the integers, 1, 2 and 3.

6. A bound indicator as claimed in claim 1 wherein said carrier is a glass.

7. A bound indicator as claimed in claim 1 wherein said carrier is zirconia coated glass.

8. A bound indicator as claimed in claim 1 wherein said carrier is a metal oxide.

9. A bound indicator as claimed in claim 1 wherein said carrier is nickel oxide.

10. A bound indicator as claimed in claim 1 wherein said organic indicator is an N,N-dialkylaniline.

11. A bound indicator as claimed in claim 1 wherein said organic indicator is selected from the group consisting of diazo, amino, carboxy and alkylsilane deriVatives of N,N-dimethylaniline.

12. A bound indicator as claimed in claim 1 wherein said organic indicator is selected from the group consisting of B-naphthol and derivatives thereof.

13. A bound indicator as claimed in claim 1 wherein said organic indicator is selected from the group consisting of triarylmethyl compounds.

14. A bound indicator as claimed in claim 1 wherein said organic indicator is phenolphthalein.

15. A bound indicator as claimed in claim 1 wherein said indicator is methylene blue.

16. A bound indicator as claimed in claim 1 wherein said organic indicator is Eriochrome Black T.

17. A process for the preparation of the bound indicator of claim 1 which includes the steps of providing a silane which has an organofunctional group, causing the silane to react with a carrier which has available hydroxyl or oxide groups, and causing the organofunctional group of the silane to react with an indicator.

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Indicators covalently bound to insoluble carriers

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