Based on the picturei) the sensitivity of method.ii) the concentration of lead in the soil in mg/kg. The lead level in a sample of contaminated soil was determined using AAS. A2.0 g sample was dissolved in acid and then diluted to a total volume of 50.0mL. The absorbance of this solution, determined in a spectrometer at awavelength of 218 nm, was found to be 0.20. Several standard solutions weretested under the same conditions and a calibration curve shown below wasobtained.0.80.70.60.50.40.30.20.15.010.0concentration of Pb (mg L-1)absorbance

Atomic Absorption Spectroscopy is a technique for rapid trace metal analysis. It is an easy, and…

The lead level in a sample of contaminated soil was determined using AAS. 2.0 g sample was dissolved in acid and then diluted to a total volume of 50. L. The absorbance of this solution, determined in a spectrometer at wavelength of 218 nm, was found to be 0.20. Several standard solutions wer ested under the same conditions and a calibration curve shown below wa obtained.

The lead level in a sample of contaminated soil was determined using AAS. 2.0 g sample was dissolved in acid and then diluted to a total volume of 50. L. The absorbance of this solution, determined in a spectrometer at wavelength of 218 nm, was found to be 0.20. Several standard solutions wer ested under the same conditions and a calibration curve shown below wa obtained.

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

Chapter14: Applications Of Ultraviolet-visible Molecular Absorption Spectrometry

Section: Chapter Questions

Problem 14.9QAP

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A 10.00 mL of natural water sample containing Ni2+ was pipetted into a volumetric flask and diluted to 50.00 mL with pure water. In the second 10.00 mL of natural water sample transferred into a volumetric flask, exactly 4.00 mL of a Ni2+ solution with a concentration of 5.99 mg/L was added and then diluted to 50.00 mL with pure water. The measured absorbance is A1= 0.436 and A2 = 0.663. What is the Ni2+ concentration in unit of mg/L in the natural water sample?