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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 Step-by-step Video
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
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