Patent · US Active

Method for measuring phosphoric acid

US8440422B2 · kind B2 · utility

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11Claims
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Key dates

Filing dateNov 21, 2008
Grant dateMay 14, 2013
Priority date
Expiry dateAug 16, 2029

Classification

  • Technology area (CPC C)Chemistry; Metallurgy
  • CPC primaryC12Q1/32
  • WIPO fieldBiotechnology
  • WIPO sectorChemistry

Abstract

In measuring phosphoric acid by the use of an enzyme cycling system using a dehydrogenase together with a thio-NADP, a thio-NAD, a reduced thio-NADP or a reduced thio-NAD as a coenzyme, phosphoric acid is measurable in a wide concentration range from a low concentration to a high concentration by measuring phosphoric acid after previous removal of free phosphoric acid in reagent components for the measurement.

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