Which of the following statements is true regarding the iron-phenanthroline method?

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 14.6QAP: The accompanying data (1.00-cm cells) were obtained for the spectrophotometric titration 10.00 mL of...
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Which of the following statements is true regarding the iron-phenanthroline method?
I. Any wavelength of radiation can be utilized with no change in the results.
II. Blank correction must be performed to account for any absorbing species other than the analyte in the
solution.
III. This method can be used to discriminate and quantify the Fe³+ and Fe²+ content in the sample.
A III only
B
I and II
ⒸII only
II and III
Transcribed Image Text:Which of the following statements is true regarding the iron-phenanthroline method? I. Any wavelength of radiation can be utilized with no change in the results. II. Blank correction must be performed to account for any absorbing species other than the analyte in the solution. III. This method can be used to discriminate and quantify the Fe³+ and Fe²+ content in the sample. A III only B I and II ⒸII only II and III
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