Patent · US Expired

Use of a sparingly soluble salt of a heteropoly acid for the determination of an analyte, a corresponding method of determination as a suitable agent therefor

US5240860A · kind A · utility

22Cited by
2References
14Claims
0Family size

Assignee

Inventors

Key dates

Filing dateDec 3, 1990
Grant dateAug 31, 1993
Priority date
Expiry dateDec 3, 2010

Classification

  • Technology area (CPC Y)Emerging Cross-Sectional Technologies
  • CPC primaryY10T436/175383
  • WIPO fieldMeasurement
  • WIPO sectorInstruments

Abstract

A sparingly soluble salt of a heteropoly acid is used for the determination of an analyte which is an aromatic amine rich in electrons or together with another substance leads to such an amine. The analyte is determined by means of the heteropoly blue color formed.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.