Thermo Scientific Orion 2110XP Ammonia Analyzer

CalibrationSpan CheckProcedureThe Thermo Scientific Orion 2110XP ammonia analyzer remains in thesample mode during the entire procedure.1. Fill the flow cell to calibration level (V 0 , approximately 95 mL).2. Record the concentration displayed when the reading is reasonablystable (C 0 ).3. Add standard 1, volume V 1 , with concentration C 1 .4. When the reading is reasonably stable, record the concentration (C S ).5. The recorded value should be within ± 10% of the calculated valueaccording to:C S = (C 0 x V 0 + C 1 x V 1 ) / (V 0 + V 1 )• C 1 should be the concentration actually in the standard bottle.Thermo Scientific Orion 2110XP Ammonia Analyzer User GuideIV-14