TOTAL SULFUR DIOXIDE - Colorimetric Method (DTNB)
Reagent for the determination of total sulfur dioxide in wine and must
€60.00
Out of stock
Total number of tests (on automated analyzers): 400 / 1000 tests (calculated with a reaction volume of 0.250 mL/test)
Total number of tests (manual procedure): 100 / 250 tests (calculated with a reaction volume of 1.000 mL/test)
Stable Liquid Reagent (SLR)
No. 01 Reagents
Wavelength: 405-492 nm
End Point Time: 2 minutes
Linearity: 200 mg/L
Sulphur dioxide is one of the most important parameters in wine control. It has antioxidant and antimicrobial properties, protecting wine from oxidation, spoilage and the development of unwanted microorganisms.
A distinction is generally made between:
free sulphur dioxide, the active and available fraction;
total sulphur dioxide, which includes both free and bound forms.
SO₂ determination is essential to:
ensure protection during storage and bottling;
verify regulatory compliance;
avoid insufficient or excessive dosage;
preserve freshness, colour and aromatic profile;
control wines intended for export.
Fast and reliable methods for sulphur dioxide determination allow laboratories to support wineries with timely data, reducing oxidative and microbiological risks.
