A researcher is interested in determining the detection and quantitation limits of a method for the detection of methylmercury. Ten method blanks gave the dimensionless instrument readings: 78.7, 43.9, 35.7, 47.7, 92.7, 33.5, 85.5, 71.1, 38.1, and 78.9. Ten samples containing a low concentration of methylmercury near the detection limit had a mean reading of 159.3. The slope of the calibration curve is 3.62 × 10⁹ M-¹. Estimate the signal and concentration detection limits and the lower limit of quantitation for methylmercury.
A researcher is interested in determining the detection and quantitation limits of a method for the detection of methylmercury. Ten method blanks gave the dimensionless instrument readings: 78.7, 43.9, 35.7, 47.7, 92.7, 33.5, 85.5, 71.1, 38.1, and 78.9. Ten samples containing a low concentration of methylmercury near the detection limit had a mean reading of 159.3. The slope of the calibration curve is 3.62 × 10⁹ M-¹. Estimate the signal and concentration detection limits and the lower limit of quantitation for methylmercury.
Chemistry
10th Edition
ISBN:9781305957404
Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Chapter1: Chemical Foundations
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Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...
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Transcribed Image Text:A researcher is interested in determining the detection and quantitation limits of a method for the detection of methylmercury.
Ten method blanks gave the dimensionless instrument readings: 78.7, 43.9, 35.7, 47.7, 92.7, 33.5, 85.5, 71.1, 38.1, and 78.9.
Ten samples containing a low concentration of methylmercury near the detection limit had a mean reading of 159.3. The slope
of the calibration curve is 3.62 × 10⁹ M-¹. Estimate the signal and concentration detection limits and the lower limit of
quantitation for methylmercury.
signal detection limit:
concentration detection limit:
lower limit of quantitation:
M
M
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