Determination of 237Np in environmental and nuclear samples: A review of the analytical method

Electrochemical preparation and spectroelectrochemical study of neptunium chloride complexes in LiCl–KCl eutectic melts

“…2d). The neptunium content was estimated to be 0.11 wt% by alpha spectrometry [13,21]. The absorption spectra of NpCl 3 were measured by adding the Np-LiCl-KCl cylinders in a LiCl-KCl melt and the electrospectroscopic measurements were perforemd while applying potentials to a solution in the spectroelectrochemical measurement cell (Fig.…”

Atomic spectrometry update: review of advances in the analysis of metals, chemicals and materials

“…Several mass bias correction procedures were evaluated and a combination of thallium normalization and standard bracketing was optimal. Precisions were 0.0039, 0.0014 and 0.0012% and accuracies (in parts per thousand) were 0.001, 0.001 and 0.004 for 208 Pb/ 204 Pb, 207 Pb/ 204 and 206 Pb/ 204 Pb, respectively for the analysis of NIST SRM 981. The other paper 77 also used an acid digestion but then derivatized the Pb using tetraethylborate forming tetraethyl lead.…”

Determination of artificial beta-emitters in sludge samples

“…Over the last few decades, increasing attention has been paid to the presence of natural and artificial radionuclides in different types of water samples [1][2][3][4]. On the whole, the origin of natural radionuclides in river water can generally be attributed to the geology of the land through which the rivers flow.…”