What is the NomaSense PolyScan B200?
The NomaSense PolyScan B200 is an analyzer that characterizes the phenolic fingerprint of a wine or a grape from a global electrochemical measurement of oxidizable compounds. It uses single-use electrodes.
What is the technology used by the NomaSense PolyScan B200?
The technology used by the device is voltammetry. A potential is applied to the electrode in a range suitable for the analysis of wine. The application of this potential on the surface of the electrode causes oxidation of the compounds present in the sample. The resulting current is measured.
What is the specificity of the electrode?
Electrodes used to perform measurements with the PolyScan B200 are disposable and are specifically suited to the measurement of oxidizable compounds of the wine.
Is it necessary to clean electrodes between each measure?
No cleaning is required. An electrode is used only to a single measure.
Can an electrode be used several times?
No. Electrodes are single use. For each measure, a new electrode is used.
What are the different components measured with the NomaSense PolyScan B200?
From the global analysis of oxidizable compounds, and through the application of mathematical models obtained at the end of several years of research, the NomaSense PolyScan B200 provides three parameters with a practical interest depending on the matrix and the winemaking step: EasyOx, PhenOx and TannOx.
What is EasyOx parameter?
EasyOx gives an indication of the easily oxidizable polyphenols content which is rapidly involved in oxidation reactions. The higher the EasyOx value, the richer the sample is in easily oxidizable compounds.
What is PhenOx parameter?
PhenOx gives an indication of the total polyphenols content. It is correlated with the Folin-Ciocalteu index and expressed in Gallic acid equivalents (GAE mg/L). The higher the PhenOx value, the richer the sample is in polyphenols.
What is TannOx parameter?
TannOx gives an indication of the tannins content. This index, expressed in Tannic acid equivalents (TAE mg/L), is correlated with the measurement of total tannins by precipitation with methyl cellulose. This index is used in the case of grape seed or whole berries analyses.
Which is the side of the electrode inserted into the device?
Electrodes have a white end on one side and a blue end on the other side. The white end is fitted to be inserted into the device. Be careful not to touch the opposite (blue) end of the electrode with your fingers.
On which electrode’s side the sample must be dropped?
Electrodes have a white end on one side and a blue end on the other side. The sample must be dropped on the electrode’s blue side.
Do electrodes need to be calibrated?
No. The electrodes do not require any calibration.
What happens if I touch with my fingers the electrode blue end suited for analysis?
Do not touch the electrode blue end with your fingers. If you touch this part inadvertently, we recommend you to change electrode to avoid any bias.
Do samples need to be prepared?
Grape must or wine sample are analyzed directly without any preparation. For certain types of measures, like grape seed, whole berries or oak alternatives for example, a specific protocol is required. For more information, please read the PolyScan User Guide stored in the device or download it on the Nomacorc’s website.
How is the measurement launched?
To start a measurement, connect the NomaSense PolyScan B200 on your computer. The software starts automatically. Insert an electrode into the device. With a pipette, drop the sample on the electrode. Click on ‘Start measure ‘. The device launches the measurement, curves appear on the screen.
Once the analysis is complete, how do I get my results?
Results are obtained via the web interface https://nomascan.com. Once the analysis is complete on the computer, click “Save Result” and enter a name for your sample. The saved file (grt) must be exported on the https://nomascan.com site to extract the results. To know more please read the NomaScan website User Guide stored into the device or download it on the Nomacorc’s website.
What are the curves that appear on the computer screen during the analysis?
The curves that appear on the screen during the measurement are the raw data generated by the device during the measurement. From these raw data, various useful parameters, namely the EasyOx, PhenOx and TannOx parameters are extracted via the web interface NomaScan.
What is the purpose of the Edel values that appear on the computer screen?
Edel values can be used to check the smooth running of the Analyzer. For more information, please contact us.
The device software does not launch automatically, what to do?
If the NomaSense PolyScan B200 software does not launch automatically when you connect the device to your computer, run it manually from the Autorun interface by selecting Edel Technology.
Where are the ID and password to login to the web interface NomaScan?
ID and password for login are provided with the device. An email, containing all the access codes is also issued with the purchase confirmation order of the NomaSense PolyScan B200. Username (or ID) must be carefully preserved. If you forget the password, click on the message of the home page inviting you to request a new one.
Where can I find the different user guides?
The PolyScan User Guide and the NomaScan website User Guide are both stored into the NomaSense PolyScan B200 analyzer and accessible directly on your computer once the PolyScan is connected. You can also download these two guides directly on the Nomacorc’s website.
How does the web interface NomaScan work?
To know more about all the possibilities offered by the interface and the optimal way to use it, please read the NomaScan website User Guide.
In what case can the scanner be used?
The NomaSense PolyScan B200 can be used to perform single measurements or monitor measurement at different stages of the winemaking process. Seven different applications (available on the web interface NomaScan) can be made depending on the sample type and the winemaking step. To know more about the different possible applications, please read the PolyScan User Guide.
Are the data downloaded from the web interface protected?
The data downloaded to the NomaScan interface are protected and not disclosed. However, certain data can be used by Nomacorc (exclusively) to enhance the NomaSense PolyScan B200 database.