Free SO₂ | Test kit for Autoanalyser

Sulfur dioxide is used as a preservative in wine and there are restrictions limiting the amount that can be added in most wine producing countries. This test kit is a fast and easy way to determine the amount of free sulfur dioxide in wine samples, without the need for the laborious setup associated with traditional methods. Additionally, unlike some other commercial products this test kit does not contain formaldehyde, which is a known carcinogen.

Analytical principle

The Vintessential™ Free SO₂ Test Kit enables automated determination of free sulfur dioxide concentrations in wine samples. The method is designed to provide efficient, repeatable analysis for routine sulfur dioxide management programs.

Sulfite ions react with a chromogenic reagent to form a coloured compound. The resulting absorbance is measured automatically and is directly proportional to the concentration of free sulfur dioxide present in the sample.

Key parameters

Analyte: Free Sulfur Dioxide (SO₂)

Measurement Wavelength: 560 nm

Detection Method: Colourimetric

Sample Type: Wine

Typical uses

• Sulfur dioxide management programs
• Oxidation protection monitoring
• Bottling preparation
• Cellar quality assurance
• Wine stability monitoring
• Routine compliance testing

Resources

Instructions:
4B190 Free SO2 Autoanalyser Insert

Material Safety Data Sheets:

Free SO2 DA Vial 1 (Buffer)
Free SO2 DA Vial 2 (Chromogen)
Free SO2 DA Vial 3 (Standard)