3) The gold content of a concentrated sea water sample was determined using atomic-absorption spectrometry with the method of standard additions. The following results were obtained: Gold added 0 10 20 30 40 50 60 70 (ng-mL of concentrated sample) 0.314 Absorbance (r.u.) 0.257 0.364 0.413 0.468 0.528 0.574 0.635 Estimate the concentration of the gold in the concentrated sea water, and determine the confidence limits for this concentration.

3) The gold content of a concentrated sea water sample was determined using atomic-absorption spectrometry with the method of standard additions. The following results were obtained: Gold added 0 10 20 30 40 50 60 70 (ng-mL of concentrated sample) 0.314 Absorbance (r.u.) 0.257 0.364 0.413 0.468 0.528 0.574 0.635 Estimate the concentration of the gold in the concentrated sea water, and determine the confidence limits for this concentration.

Appl Of Ms Excel In Analytical Chemistry

2nd Edition

ISBN:9781285686691

Author:Crouch

Publisher:Crouch

Chapter12: Spectrochemical Methods

Section: Chapter Questions

Problem 2P

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