Consider two MRI contrast agents, one based on high-spin Fe(III) and the other on Gd(III). If both have the same ligand environment and their water exchange rates are similar, which one do you believe will provide the best contrast? Explain your answer. Which of the plots below (a or b)

Consider two MRI contrast agents, one based on high-spin Fe(III) and the other on Gd(III). If both have the same ligand environment and their water exchange rates are similar, which one do you believe will provide the best contrast? Explain your answer. Which of the plots below (a or b)

Fundamentals Of Analytical Chemistry

9th Edition

ISBN:9781285640686

Author:Skoog

Publisher:Skoog

Chapter26: Molecular Absorption Spectrometry

Section: Chapter Questions

Problem 26.30QAP

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Question

Consider two MRI contrast agents, one
based on high-spin Fe(III) and the other on
Gd(III). If both have the same ligand
environment and their water exchange
rates are similar, which one do you believe
will provide the best contrast? Explain your
answer.
Which of the plots below (a or b)
corresponds to your metal ion of choice in
part (i)? Explain your reasoning
TI(obs)
24
22
2'0
1'8
16
14
1'2
1'0
0'8
04
concentration C(MM)
02
0:3
0'5

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