Use of the Relaxometry Technique for Quantification of Paramagnetic Ions in Aqueous Solutions and a Comparison with Other Analytical Methods

Figure 1

Calibration curves for relaxometry obtained using the Spinlock (it is represented by the symbol ■) and the UNMR (it is represented by the symbol ○). Each curve was made 7 times and the average is represented in the figure. The ions Cu²⁺, Ni²⁺, Cr³⁺, and Mn²⁺ are represented by (a), (b), (c), and (d), respectively.

(a)

(b)

(c)

(d)