Determination of the lanthanides, uranium and plutonium by means of on-line high-pressure ion chromatography coupled with sector field inductively coupled plasma-mass spectrometry to characterize nuclear samples

Nd, Am and Cm isotopic measurements after simultaneous separation in transmutation irradiated samples

“…150 Nd/ 145 Nd ratios were 1.2877(15), 1.3840(77), 0.8562(21), 0.5705(17) and 0.3445(21), respectively, for the DIAMINO disc. These data are in agreement with the simulation code data: about 1.2, 1.4, 0.84, 0.56 and 0.31 for 143 Nd/ 145 Nd, 144 Nd/ 145 Nd, 146 Nd/ 145 Nd, 148 Nd/ 145 Nd and 150 Nd/ 145 Nd ratios, respectively.…”

“…In aqueous solution, the lanthanides are strongly hydrated trivalent cations and cannot be easily separated by ion exchange resins 14,15 . However, the separation selectivity can be increased using appropriate chelating agents such as HMB, HIBA or oxalic acid [14][15][16][17][18][19][20][21] .…”

“…In aqueous solution, the lanthanides are strongly hydrated trivalent cations and cannot be easily separated by ion exchange resins 14,15 . However, the separation selectivity can be increased using appropriate chelating agents such as HMB, HIBA or oxalic acid [14][15][16][17][18][19][20][21] . With oxalic acid, lanthanides form negatively charged complexes that can interact with a resin having positively charged functional groups (like IonPac CS5A column 15,17,18 ).…”

“…However, the separation selectivity can be increased using appropriate chelating agents such as HMB, HIBA or oxalic acid [14][15][16][17][18][19][20][21] . With oxalic acid, lanthanides form negatively charged complexes that can interact with a resin having positively charged functional groups (like IonPac CS5A column 15,17,18 ). Heavier lanthanide ions (e.g.…”

Microfluidic In-Situ Spectrophotometric Approaches to Tackle Actinides Analysis in Multiple Oxidation States

“…There are many analytical methods for quantifying actinides in solution, from inductively coupled plasma optical emission spectrometry (ICP-OES) 2 to Raman 3 and ultraviolet–visible (UV–Vis) spectroscopy, 4 including the benefits of microsystem analysis, 5 but few of them allow live, online monitoring of the small volumes, beneficial to the study of complex chemical and radioactive conditions encountered in actinide research. Among these methods, Raman spectroscopy and UV–Vis absorbance are the most relevant analytical techniques to measure actinide concentrations in aqueous solutions.…”