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.

Principles of Instrumental Analysis

7th Edition

ISBN:9781305577213

Author:Douglas A. Skoog, F. James Holler, Stanley R. Crouch

Publisher:Douglas A. Skoog, F. James Holler, Stanley R. Crouch

Chapter1: Introduction

Section: Chapter Questions

Problem 1.9QAP

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