Method and means for the determination of total acid

Details Method and means for the determination of total acid Method and means for the determination of total acid

2007-07-31

2007-07-31

Ludlow, Jan M. (Department: 1743)

Chemistry: analytical and immunological testing

Food or dairy products

Wine or alcoholic beverages

C436S020000, C436S163000, C426S015000, C426S231000

Reexamination Certificate

active

10491425

ABSTRACT:
The invention relates to a dry-chemical method and a test kit for the rapid, quantitative analysis of total acid in wine and must. In this method, a slightly alkaline buffer is added to the sample to be analyzed, and the total acid content is determined from the resultant pH with the aid of a test stick with pH indicator.

REFERENCES:
patent: 2953439 (1960-09-01), Elliott et al.
patent: 3811837 (1974-05-01), Hoffman
patent: 4606824 (1986-08-01), Chu et al.
patent: 5853669 (1998-12-01), Wolfbeis
patent: 6071515 (2000-06-01), Mezes et al.
patent: 0184672 (1986-06-01), None
patent: 1248106 (2002-10-01), None
patent: 1097946 (1984-06-01), None
Translation USSR Patent Specification No. SU1097946.
http://www.medibix.com/runsearch.jsp?view=sku&product—1d=465276.
Patent Abstracts of Japan vol. 013, No. 316 (P-900), Jul. 18, 1989 & JP 01086063 A (Toyo Roshi KK), Mar. 30, 1989.

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