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

作者：Kolacinska Kamila; Chajduk Ewelina; Dudek Jakub; Samczynski Zbigniew; Lokas Edyta; Bojanowska Czajka Anna; Trojanowicz Marek^*

来源：Talanta, 2017, 169: 216-226.

DOI：10.1016/j.talanta.2016.10.051

• Strontium-90
• ICP-MS
• Solid-phase extraction
• Extraction resin
• Environmental analysis
• Nuclear reactor coolant

Sr-90 is a widely determined radionuclide for environmental purposes, nuclear waste control, and can be also monitored in coolants in nuclear reactor plants. In the developed method, the ICP-MS detection was employed together with sample processing in sequential injection analysis (SIA) setup, equipped with a lab-on-valve with mechanized renewal of sorbent bed for solid-phase extraction. The optimized conditions of determination included preconcentration of Sr-90 on cation-exchange column and removal of different type of interferences using extraction Sr-resin. The limit of detection of the developed procedure depends essentially on the configuration of the employed ICP-MS spectrometer and on the available volume of the sample to be analyzed. For 1 L initial sample volume, the method detection limit (MDL) value was evaluated as 2.9 ppq (14.5 Bq L-1). The developed method was applied to analyze spiked river water samples, water reference materials, and also simulated and real samples of the nuclear reactor coolant.

• 出版日期2017-7-1