OMA Protocol Review: OMAMAN-56 Sulfites in Shrimp

As a result of the Calibration, the parameters of the linear regression obtained by the interpolation of the two calibration points and the 0.0 point will appear. R values of at least 0.9985 and m values equal to or less than - 290,000 will be deemed as valid to proceed with the analysis. Otherwise, change the measurement cuvette, put it to Stand by mode for 30 seconds and calibrate again.

• STANDARD MEASUREMENT: The calibration status should be tested using the Standard option after every 10-15 measurements or after the device has not been running for 30 minutes. 1. Press Standard in the ANALYSIS option. 2. Check that the cuvette is correctly fitted and filled with Measurement Solution and press CONTINUE to begin the Standard measurement. 3. Wait until the device records the measurement target and it issues a sound signal. Press CONTINUE and pipette the SUL Standard 3 into the measuring cuvette, using a micropipette (See Table 6). 4. Wait until the process ends (“Biosensor calibrate” or “Biosensor descalibrate” message will appear). 5. Change the content of the cuvette with 10 ml of new Measurement Solution.

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