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Biomedical subjects

Cecil Dybowski

Publications and source records attributed to Cecil Dybowski.

5 recordsLinked to original sources

Quantitative determination of lead in mixtures of lead(II) halides using solid-state 207Pb NMR spectroscopy.

We demonstrate a multi-spectrum technique for facile, quantitative determination of lead in solid materials using solid-state (207)Pb NMR that avoids the major problem of uniform excitation across a wide spectral range; the method can be employed without chemical separation or other chemical manipulations and without any prior sample preparation, resulting in a non-destructive analysis, and producing results that are in agreement with gravimetric analyses of mixed samples of the lead halides.

Fluorides↗

Solid-state 207Pb NMR studies of mixed lead halides, PbFX (X=Cl, Br, or I).

Solid-state 207Pb NMR studies have been conducted on mixed lead(II) halides of the type PbFX, where X=Cl, Br, or I. NMR data for the mixed halides are compared to the solid-state NMR data for the divalent, binary lead halides, PbX2 (X=F, Cl, Br, I). The NMR data are evaluated in the context of the structures of the compounds and the effects of the mixed halides on the electronic structure of the divalent lead. Data sets for the mixed halides are discussed and compared to those for the regular lead(II) halides.

Crystallography, X-Ray↗