OMA Protocol Review: OMAMAN-56 Sulfites in Shrimp
Figure 3. Screens of the Biotest menu
( e ) From the main screen, the ANALYSIS option leads to the analysis menu: Recondition, Activate, Calibrate, Standard, Verifying Solution, Sample, and Stand By.
Figure 4. Screen of the Analysis menu
Reconditioning, Activation and Calibration of the Biotest Once per day, before analyzing samples, the Biotest must be reconditioned, activated, and
calibrated.
( a ) Reconditioning.-- ( 1 ) Press Recondition, verify the proper placement of the cuvette with the 10 mL of SUL Measurement Solution, add sulfite standard (4 mL of SUL Standard 3 for the 7-30 mg/kg
range; 2 mL of SUL Standard 1 for the 30-150 mg/kg range; or 1 mL of SUL Standard 2 for the 50-300
mg/kg range) into the measurement cuvette and press CONTINUE. ( 2 ) Wait for the equipment to emit
an acoustic signal, press CONTINUE, and once again inject sulfite standard (4 mL of SUL Standard 3 for
the 7-30 mg/kg range; 2 mL of SUL Standard 1 for the 30-150 mg/kg range; or 1 mL of SUL Standard 2 for
the 50-300 mg/kg range) into the measurement cuvette and wait for the process to end. The message
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