• Development of Appropriate Acid Digestion Method used for the Determination of Total Uranium in Soil by Inductively Coupled Plasma-Mass Spectrometer (ICP-MS)
  • Shin, Gunhwan;Lee, Goontaek;Kang, Jiyoung;Yoon, Jungki;Kim, Hyunkoo;Noh, Hoejung;Kim, Jiin;Kim, Kyehoon;
  • NICEM, Seoul National University;NICEM, Seoul National University;NICEM, Seoul National University;National Institute of Environmental Research;National Institute of Environmental Research;National Institute of Environmental Research;National Institute of Environmental Research;Department of Environmental Horticulture, University of Seoul;
  • 유도결합플라즈마-질량분석기(ICP-MS)를 이용한 토양의 총 우라늄 정량에 요구되는 적정 산분해 전처리 방법 개발
  • 신건환;이군택;강지영;윤정기;김현구;노회정;김지인;김계훈;
  • 서울대학교 농업생명과학대학 농생명과학공동기기원;서울대학교 농업생명과학대학 농생명과학공동기기원;서울대학교 농업생명과학대학 농생명과학공동기기원;국립환경과학원 토양지하수연구과;국립환경과학원 토양지하수연구과;국립환경과학원 토양지하수연구과;국립환경과학원 토양지하수연구과;서울시립대학교 환경원예학과;
Abstract
Inductively coupled plasma-mass spectrometry (ICP-MS), one of the most commonly used instruments for metal analysis, was used to determine total uranium in soil. The method was named as "Modified ASTM C1345-96". When comparing with ASTM C1345-96, digestion time (2~3 days) was shorten to 7 hours and the treatment in furnace was eliminated. In analyses of 26 field soil samples, there was a significant difference in the average concentration of total uranium between modified ASTM C1345-96 and ASTM C1345-96 (F : 6.22 > Fc : 4.03, significance level : 0.05, n=26). The average concentration of modified ASTM C1345-96 was 1.8 times larger than that of ASTM C1345-96. In addition, modified ASTM C1345-96 was compared with other acid digestion methods for soil including ISO 11466, Modified ISO 11466, US EPA-3051, US EPA-3051A and US EPA-3052 using a certificated reference material (SRM 2711a, NIST) and field soil samples with different level of organic matter content (1.6%, 5.8%, 10.6%). Modified ASTM C1345-96 showed the best accuracy of 93.01% for SRM 2711a. Also, modified ASTM C1345-96 showed the higher extraction rates than other digestion methods by 11~45%.

Keywords: Acid digestion;ICP-MS;Pretreatment;Soil Analysis;Uranium;

References
  • 1. ASTM (American Society for Testing and Materials), 2001, Standard Test Method for Analysis of Total and Isotopic Uranium and Total Thorium in Soils by Inductively Coupled Plasma-mass Spectrometry, ASTM Standard C1345-96.
  •  
  • 2. Barrett, C.A., Chouyyok, W., Speakman, R.J., Olsen, K.B., and Addleman, R.S., 2017, Rapid extraction and assay of uranium from environmental surface samples, Talant., 173, 69-78.
  •  
  • 3. Bartova, H., Kucera, J., Musilek, L., Trojek, T., and Gregorova, E., 2017, Determination of U, Th and K in bricks by gamma-ray spectrometry, X-ray fluorescence analysis and neutron activation analysis, Radiat. Physi. and Chemist., 140, 161-166.
  •  
  • 4. Bigalke, M., Schwab, L., Rehmus, A., Tondo P., and Flisch, M., 2018, Uranium in agricultural soils and drinking water wells on the swiss plateau, Environ. Pollu., 233, 943-951.
  •  
  • 5. Dirican, A. and Sahin, M., 2016, Comparison of acid leaching and fusion techniques to determine uranium in soil samples by alpha spectrometry, Appl. Radia. and Isoto., 109, 189-192.
  •  
  • 6. Favas, P.J.C. and Pratas, J., 2014, Uranium bioavailability and environmental risk assessment in soils contaminated by mining, Ier. proce., 9, 43-46.
  •  
  • 7. Frances, F.S., Pacheco, E.G., Grana. A.M., Rojo, P.A., Zarza, C.A., and Sanchez, A.G., 2018, Concentration of uranium in the soils of the west of spain, Environ. Pollut., 236, 1-11.
  •  
  • 8. ISO (International Standardization Organization), 1995, Soil quality-extraction of trace elements soluble in aqua regia, ISO standard 11466.
  •  
  • 9. ISO (International Standardization Organization), 2005a, Measurement of radioactivity in the environment soil, part 1: general guidelines and definitions, ISO standard 18589-1.
  •  
  • 10. ISO (International Standardization Organization), 2005b, Certification of reference materials-general and statistical principles, ISO standard guide 35.
  •  
  • 11. Jurecic, S., Benedik, L., Planinsek, P., Necemer, M., Kump, P., and Pilhlar, B., 2014, Analysis of uranium in the insoluble residues after decomposition of soil samples by various techniques, Appl. Radia. and Isoto., 87, 61-65.
  •  
  • 12. Kim, C.J., Cho, Y.H., Chae, J.S., and Yun, J.Y., 2012, Efficient sample digestion method determination in soil using microwave digestion for alpha spectrometry, Radiati. Protect., 37(4), 213-218.
  •  
  • 13. KMOE (Korean Ministry of Environment), 2015, Guideline for Drinking Water, Notification, No.2015-214, Republic of Korea.
  •  
  • 14. Landsberger, S. and Kapsimalis, R., 2013, Comparison of neutron activation analysis techniques for the determination of uranium concentrations in geological and environmental materials, Environ. Radioactiv., 117, 41-44.
  •  
  • 15. Lee, H.W., Lim, J.M., Lee, H., Park, J.Y., Jang. M., and Lee, J.H., 2018, Study on the determination methods of the natural radionuclides ($^{238}U$, $^{232}Th$) in building materials and processed living products, Analy. Sci. Techn., 31(3), 149-160.
  •  
  • 16. Mantero, J., Lehritane, M., Hurtado, S., and Garcia-Tenorio, R., 2010, Radioanalutical determination of actinoids in refractory matrices by alkali fusion, Radio. Nucl. Chem., 286, 557-563.
  •  
  • 17. Mccormick, A., 1992, Thermal-ionization mass spectrometry for small sample analysis of uranium and plutonium, Appl. Radial. Isol., 43, 271-278.
  •  
  • 18. Park, C.S., Shin, H.S., Oh, H., Moon, J.H., Cho, H., and Cheong, C.S., 2012, Determination of trace elements in geological reference materials G-3, GSP-2 and SGD-1 a by low-dilution glass bead digestion and icp-ms, Geostand. and Geoanalyti. Resear., 37, 361-368.
  •  
  • 19. Park, J.Y., Lim, J.M., Lee, H.W., and Lee, W., 2018, Establishing of a rapid analytical method uranium isotopic ratios for environmental monitoring around nuclear facilities, Analy. Sci. Techn., 31(3), 134-142.
  •  
  • 20. Park, S.I., and Oh, T.H., 2010, The application of analysis of variance (ANOVA), Vet. Clin., 27(1), 71-78.
  •  
  • 21. Rodriguez, P.B., Tome, F.V., and Lozano, J.C., 2001, Concerning the low uranium and thorium yields in the electrodeposition process of soil and sediment analyses, Appli. Radiat. Isotop., 54, 29-33.
  •  
  • 22. Saleh, I.H. and Abdel-Halim, A.A., 2016, Determination of depleted uranium using a high-resolution gamma-ray spectrometer and its applications in soil and sediments, Taib. Univer. Scien., 10, 205-211.
  •  
  • 23. United nations scientific committee on the effects of atomic radiation (UNSCEAR), 2000, Sources and effects of ionizing radiation, report, united nations, new work.
  •  
  • 24. USEPA (United States Environmental Protection Agency), 1994, Synthetic Leaching Procedure, SW-846 : Test Methods for Evaluating Solid Waste Physical/Chemical Methods, EPA method 3051.
  •  
  • 25. USEPA (United States Environmental Protection Agency), 1996, Synthetic Leaching Procedure, SW-846 : Test Methods for Evaluating Solid Waste Protection Physical/Chemical Methods, EPA method 3052.
  •  
  • 26. USEPA (United States Environmental Protection Agency), 2007, Synthetic Leaching Procedure, SW-846 : Test Methods for Evaluating Solid Waste Physical/Chemical Methods, EPA method 3051A.
  •  

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