Determination of L-malic acid in wine by automated enzymatic method (Type-III)
OIV-MA-AS313-26 Determination of L-malic acid in wine by automated enzymatic method
Type III method
- Scope of application
This method makes it possible to determine L-malic acid in wine by specific enzyme analysis using an automatic sequential analyser.
Determination of L-Lactic acid in wines by automated enzymatic method (Type-IV)
OIV-MA-AS313-25 Determination of L-lactic acid in wines by automated enzymatic method
Type III method
- Scope of application
This method makes it possible to determine L-lactic acid in wine by specific enzyme analysis using an automatic sequential analyser.
Determination of total ethanol in wine by high-performance liquid chromatography (Type-IV)
OIV-MA-AS313-24 Determination of totla ethanol in wine by high-performance liquid chromatography
Type IV method
Scope of application
The method described is suitable for the determination of total (free and sulphur-dioxide-bound) ethanal in wine for concentrations between 0.2 and 80 mg/L.
Identification of L- tartaric acid (Type-IV)
OIV-MA-AS313-23 Identification of L-tartaric acid as being of plant or fossil origin by measuring its 
Determination of L-ascorbic acid and D-iso-ascorbic acid by HPLC (Type-II)
OIV-MA-AS313-22 Simultaneous determination of L-ascorbic acid and D-iso-ascorbic acid (erythorbic acid) in wine by HPLC and UV-detection
Type II method
Metatartaric acid (Type-IV)
OIV-MA-AS313-21 Determination of the presence of metatartaric acid
Type IV method
Sorbic, benzoic, salicylic acids (Type-IV)
OIV-MA-AS313-20 Determination of sorbic, benzoic and salicylic acid content in wine by the use of high-performance liquid chromatography
Type IV method
Organic acids and sulphates (capillary electrophoresis) (Type-II-and-III)
OIV-MA-AS313-19 Determination of the principal organic acids of wines and sulphates by capillary electrophoresis
Type II method (for organic acids)
Type III method (for sulphate)
Sorbic acid (capillary electrophoresis)
OIV-MA-AS313-18 Determination of sorbic acid in wines by capillary electrophoresis
Type IV method
- Scope
The present method is used to determine the sorbic acid in wines in a range from 0 to 300 mg/l.
Shikimic acid (Type-II)
OIV-MA-AS313-17 Determination of shikimic acid in wine by HPLC and UV-detection
Type II method