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ABG Instrumentation Analytical Errors

ABG Instrumentation Analytical Errors. Levy-Jennings Chart In Control. +2SD. X. -2SD. Random Error. +2SD. X. -2SD. Contributing Factors Statistical probability Contamination of the sample Improper handling of the sample. Corrective Actions

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ABG Instrumentation Analytical Errors

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  1. ABG InstrumentationAnalytical Errors

  2. Levy-Jennings ChartIn Control +2SD X -2SD

  3. Random Error +2SD X -2SD

  4. Contributing Factors Statistical probability Contamination of the sample Improper handling of the sample Corrective Actions Reanalyze control sample after performing a 2-point calibration If this works no further action is needed If this does not work, follow manufacturer recommendations Random Errors

  5. Systematic or Bias ErrorTrend +2SD X -2SD

  6. Systematic or Bias ErrorShift +2SD X -2SD

  7. Contributing Factors Contaminated buffer solutions Incorrect gas concentrations Component degradation/ failure Incorrect procedure Corrective Actions Troubleshoot suspected problems Repair or replace problematic components Re-run 2 point calibration Bias errors

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