SC-100A S02 Analyzer (Vinmetrica)

The Vinmetrica SC-100A Wine Sulfite (SO2) Analyzer KitThe SC-100A analyzer gives you confidence to run your sulfite assays accurately and quickly. 

Kit includes everything to perform ~50 tests: electrode, reagents, pipettes, syringe and beaker.

 

SC-100A Manual 
SC-100A Step-by-step Video 

The SC-100A puts you in control of your wine sulfite analysis. It’s highly accurate and sensitive titration system conveniently alerts you visually and audibly when the endpoint is detected by its electrode.
 
Because it doesn’t rely on a color change, the SC-100A eliminates the guesswork in Ripper sulfite tests, especially in red wines!
  
Simple To Use

• 1. Attach SO2 electrode, press the power button, change to ‘SO2′ mode and press enter.
• 2. Draw up 5 mL of titrant into the syringe. Then place 25 mL of wine in beaker.
• 3. Add ~2 mL of the acidifier and ~2 mL of the reactant to wine.
• 4. Place and hold the SO2 electrode into the wine sample and swirl beaker.
• 5. Add titrant dropwise, pause when device beeps, until 15 seconds of beeps reached.
• 6. Multiply the titration volume by 20, the SO2 conversion factor, results in ppm Free SO2.

Complete Kit Includes Everything You Need for Your First 50 Tests.

• SO₂ reagents
• Titration beaker
• 5 mL syringe
• SO₂ electrode
• 25 mL sampling pipette
• 2 transfer pipettes

Magnetic stirrer, burettes are optional

 

How It Works

The SC-100A improves on the tried and true Ripper Method by eliminating the guesswork in colorimetric analysis and replacing it with digital detection indicators.
 
It uses an amperometric electrode and replaces the iodine reagent with a more stable reagent. Its ease of use and accurate amperometric titration method vastly improves on the original Ripper Method.
 
The SO2 Titrant reacts with the sulfite in the wine. When all the free SO₂ is titrated, the endpoint is signalled by visual and audible indicators. The test endpoint is much more sensitive than the starch endpoint 

commonly employed for sulfite titrations. It’s sharp and clear, even when titrating red wines and musts.
 
Once the syringe titration is complete, determine the titration volume (which is the difference of titrant you started with and its final reading on the syringe) and multiply it by 20 (the conversion factor).
 
The conversion factor takes into account the known concentration of the titrant and some simple unit conversions to determine the ppm Free SO2 in your wine sample. So for example if you 

used 1.2 mL of SO2 Titrant during the titration, your equation would look like this:
 
1.2 mL X 20 = 24 ppm Free SO2