Ultratrace determination of strontium-90 in environmental soil samples from Qatar by collision/reaction cell-inductively coupled plasma mass spectrometry (CRC-ICP-MS/MS)
المؤلف | Al-Meer, S. H. |
المؤلف | Amr, M. A. |
المؤلف | Helal, A. I. |
المؤلف | Al-Kinani, A. T. |
تاريخ الإتاحة | 2024-09-11T06:48:05Z |
تاريخ النشر | 2014-02-18 |
اسم المنشور | Proceedings of the International Conference on Radioactive Waste Management and Environmental Remediation, ICEM |
المعرّف | http://dx.doi.org/10.1115/ICEM2013-96160 |
الاقتباس | Al-Meer, S. H., Amr, M. A., Helal, A. I., & Al-Kinani, A. T. (2013, September). Ultratrace determination of strontium-90 in environmental soil samples from Qatar by collision/reaction cell-inductively coupled plasma mass spectrometry (CRC-ICP-MS/MS). In International Conference on Radioactive Waste Management and Environmental Remediation (Vol. 56024, p. V002T04A010). American Society of Mechanical Engineers. |
الترقيم الدولي الموحد للكتاب | 978-079185602-4 |
الملخص | Because of the very low level of 90Sr in the environmental soil samples and its determination by beta counting may take several weeks, we developed a procedure for ultratrace determination of 90Sr using collision reaction cell-inductively coupled plasma tandem mass spectrometry (CRC-ICP-MS/MS, Agilent 8800). Soil samples were dried at 105 °C and then heated in a furnace at 550 °C to remove any organics present. 500 g of each soil samples were aliquoted into 2000 ml glass beakers. Each Soils samples were soaked in 2 ppm Sr solution carrier to allow determination of chemical yield. The solid to liquid ratio was 1:1. Finally the soil samples were dried at 105 °C. Five hundred milliliters concentrated nitric acid and 250 ml hydrochloric acid volumes were added on 500 g soil samples. The samples were digested on hot plate at 80 °C to prevent spraying with continuous manual mixing. The leachate solution was separated. The solids were rinsed with 500 ml deionized water, warmed on a hot plate and the leachate plus previous leachate were filtered and the total volume was reduced to 500 ml by evaporation. Final leachate volume was transferred to a centrifuge tubes. The centrifuge tubes were centrifuged at 3,500 rpm for 10 min. The leachate was transferred to a 1 L beaker and heated on a hot plate to evaporate the leachate to dryness. The reside was re-dissolved in 100 ml of 2% HNO3 and reduced by evaporation to 10 mL. The solution was measured directly by CRC-ICP-MS/MS by setting the first quadruple analyzer to m/z 90 and introducing oxygen gas into the reaction cell for elimination isobar interference from zirconium-90. The method was validated by measurements of standard reference materials and applied on environmental soil samples. The overall time requirement for the measurement of strontium-90 by CRC-ICP-MS/MS is 2 days, significantly shorter than any radioanalytical protocol currently available. Copyright © 2013 by ASME. |
اللغة | en |
الناشر | The American Society of Mechanical Engineers (ASME) |
الموضوع | ICP-MS Reaction cell Strontium-90 Tandem ICP-CRC-MS |
النوع | Conference Paper |
رقم المجلد | 2 |
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