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II. An atomic absorption method for the determination of the amount of Iron present in used jet engine oil was found, from pooling 30 triplicate

  • II. An atomic absorption method for the determination of the amount of Iron present in used jet engine oil was found, from pooling 30 triplicate analyses, to have a standard deviation of 2.4 µg Fe/mL. Calculate the 80% and 95% confidence limits for the results, 18.5 µg Fe/mL if based on a single analysis.

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