Mass spectrometric measurements of zinc near the detection limit gave the following counts: 75.1, 68.2, 64.1, 93.5, 55.6, 70.8, 80.7, 72.3, 59.2, and 76.8. A blank solution was measured 10 times and gave a mean signal of 18 counts. A sample containing 1.20 µM Zn2+ gave a signal of 1 159 counts. What is the concentration detection limit for zinc?

Mass spectrometric measurements of zinc near the detection limit gave the following counts: 75.1, 68.2, 64.1, 93.5, 55.6, 70.8, 80.7, 72.3, 59.2, and 76.8. A blank solution was measured 10 times and gave a mean signal of 18 counts. A sample containing 1.20 µM Zn2+ gave a signal of 1 159 counts. What is the concentration detection limit for zinc?

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

Chapter9: Atomic Absorption And Atomic Fluorescence Spectrometry

Section: Chapter Questions

Problem 9.22QAP: The chromium in an aqueous sample was determined by pipetting 10.0 ml. of the unknown into each of...

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