OIV-MA-AS323-01A Determination of arsenic in wine by atomic absorption spectrometer

Type IV method

1. Principle

After evaporating ethyl alcohol and reducing the arsenic V in arsenic III, wine arsenic is measured by hydride generation and by atomic absorption spectrometry.

OIV-MA-AS322-13 Analysis of mineral elements in wines using ICP-AES (inductively coupled plasma/atomic emission spectrometry)

Type III method

1. Warning

Safety precautions - When handling acids, operators should protect their hands and eyes. Acids must be handled under a suitable hood.

OIV-MA-AS322-12 Analysis of mineral elements in wines using ICP-AES inductively coupled plasma/atomic emission spectrometry)

Type III method

1. Warning

Safety precautions - When handling acids, operators should protect their hands and eyes. Acids must be handled under a suitable hood.

OIV-MA-AS322-09 Silver

Type IV method

1. Principle

The method is based on the use of atomic absorption spectrophotometry after ashing the sample.

OIV-MA-AS322-08 Zinc

Type IV method

1. Principle

After removal of alcohol, zinc is determined directly in the wine by atomic absorption spectrophotometry.

OIV-MA-AS322-07 Magnesium

Type II method

1. Principle

Magnesium is determined directly on diluted wine by atomic absorption spectrophotometry.

OIV-MA-AS322-06 Copper

Type IV method

1. Principle

The method is based on the use of atomic absorption spectrophotometry.

2. Apparatus

OIV-MA-AS322-05B Iron

Type IV method

1. Principle

After digestion in hydrogen peroxide, 30%, the total iron, present as Fe (III) state, is reduced to the Fe (II) and quantified by the formation of a colored orthophenanthroline complex.

OIV-MA-AS322-05A Iron

Type IV method

1. Principle

After suitable dilution of the wine and removal of alcohol, iron is determined directly by atomic absorption spectrophotometry.