Revealing full chemical forms of lead in wine with combined XRF-NMR technologies

Open Access

Figure 2.

One dimensional optimized ²⁰⁷Pb NMR spectra in the solid (top) and liquid (bottom) state of lead citrate dimer C₁₂H₁₀O₁₄Pb₃ used as reference for chemical shift and temperature calibrations. Both experiments were carried out at 25 ^∘C.

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