An automatic flow injection analysis procedure for photometric determination of ethanol in red wine without using a chromogenic reagent

2006 ◽  
Vol 385 (1) ◽  
pp. 197-202 ◽  
Author(s):  
Sivanildo S. Borges ◽  
Rejane M. Frizzarin ◽  
Boaventura F. Reis
Keyword(s):  
Flow Injection ◽  
Flow Injection Analysis ◽  
Red Wine ◽  
Photometric Determination ◽  
Analysis Procedure ◽  
Chromogenic Reagent

An Automated Flow Injection Analysis Procedure for the Determination of Reducing Sugars by DNSA Method

2001 ◽  
Vol 66 (3) ◽  
pp. 407-411 ◽  
Author(s):  
P. Cańtizares-Macias ◽  
L. Hernandez-Garciadiego ◽  
H. Gomez-Ruiz
Keyword(s):  
Flow Injection ◽  
Flow Injection Analysis ◽  
Reducing Sugars ◽  
Analysis Procedure

Determination of Free (pH 2.2) Sulfite in Wines by Flow Injection Analysis: Collaborative Study

1990 ◽  
Vol 73 (2) ◽  
pp. 223-226
Author(s):  
John J Sullivan ◽  
Thomas A Hollingworth ◽  
Marleen M Wekell ◽  
Victor A Meo ◽  
Ali Etemad-Moghadam ◽  
...  
Keyword(s):  
Flow Injection ◽  
Flow Injection Analysis ◽  
Red Wine ◽  
Collaborative Study ◽  
White Wine ◽  
Average Level ◽  
Aoac Official ◽  
Green Solution ◽  
High Degree

Abstract A method for the determination of free sulfite In wine by flow injection analysis (FIA) is described. The method Involves liberation of sulfur dioxide from the wine at pH 2.2, with detection by decolorlzation of a malachite green solution. The method was collaboratively studied, and the results indicated an average reproducibility of 12% for white wine samples (average level 12.1 ppm S02) and 26% for red wine samples (average level 3.1 ppm). When the FIA method was compared to an aeration/oxidation method, the results Indicated a high degree of correlation between the 2 methods. The FIA method has been adopted by AOAC official first action.

Photometric determination of tartaric acid in wine by flow injection analysis

The Analyst ◽  
1986 ◽  
Vol 111 (7) ◽  
pp. 729-732 ◽  
Author(s):  
Fernando Lázaro ◽  
M. D. Luque de Castro ◽  
Miguel Valcárcel
Keyword(s):  
Tartaric Acid ◽  
Flow Injection ◽  
Flow Injection Analysis ◽  
Photometric Determination
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