Automation of sample processing for ICP-MS determination of 90 Sr radionuclide at ppq level for nuclear technology and environmental purposes

Sequential Injection Analysis System Exploiting On-line Solid-phase Extraction for the Determination of Strontium and Nickel by Microwave Plasma Atomic Emission Spectrometry

“…The concentration ranges of 1 to 50% HNO3 and 0.01 to 0.2 mol L -1 ammonium citrate were studied, obtaining the optimal value of 10% HNO3, thus achieving the usage of a lower concentration for conditioning and rinse of the Sr resin than in those works previously reported. 1,2,13,15 Meanwhile, an optimal value of 0.2 mol L -1 ammonium citrate (pH = 8 -9) is in agreement with the concentration employed in the batch-wise methods for the nickel preconcentration in Ni resin, but achieving a reduction in its consumption during conditioning and rinsing steps due to the smaller column employed. 16 A volume of 1% HNO3 eluent solution was analyzed in the range of 0.5 to 5 mL, obtaining that 1 mL of 1% HNO3 was the optimal for the elution of a sample in both methodologies.…”

“…This could represent a drawback when continuous analyses of a big number of samples and/or multiparametric determination are required. 1,2,6,[12][13][14][15][16] The aim of this work is to develop a selective, speedy and economic methodology using solid-phase extraction for the sequential determination of strontium and nickel by microwave plasma atomic emission spectrometry, as an alternative multielement technique for possible application to measure the recovery efficiencies of their stable isotopes usually employed at high concentrations in radiometric analysis of environmental water samples.…”

Flow Chemistry in Contemporary Chemical Sciences: A Real Variety of Its Applications

“…Solid sorbents can also be employed in the form of a suspension of magnetic beads with appropriate chemical functiona-lization [179]; they can be placed onto the tip of an automatic injection syringe [180] or as a renewable bed in the mini-columns of LOV valves, enabling the automated exchange of the sorbent bed [181]. The latter mode is especially convenient in the case of using rather instable solid sorbents such as, e.g., extraction resins widely used in determinations of radionuclides [182]. This commonly employed operation was the subject of numerous review papers and even a book [183].…”

Dynamic Flow Approaches for Automated Radiochemical Analysis in Environmental, Nuclear and Medical Applications

“…For detection of short-lived radionuclides, e.g., 90 Sr, a higher detection limit inherent to ICP-MS is a disadvantage compared to radiometric methods. The method detection limit (MDL) for 90 Sr has been reported to be 14.5 Bq/L (which was sufficient for 90 Sr determination in real nuclear reactor coolant) with online ICP-MS detection connected in a LOV-SI system [61].…”

“…One of the main constraints in most commercial software packages is the high specificity for a certain configuration. To avoid the inconvenience, some in-house developed software based on LabVIEW [26,62,82], LabWindows [37,70,103,104] and Delphi plus Visual C++ (Autoanalysis software) [12,27,36,[42][43][44][45]47,53,61,105,106] respectively, has been widely applied in the radioanalytical field. In most cases of online radionuclide detection, signals from the detectors (e.g., LSC and ICP-MS) are directly collected and processed by standalone software associated with the detection instruments.…”