1. 1) Houk, R. S., Fassel, V. A., Flesch, G. D., Svec, H. J., Gray, A. L. and Taylor, C. E.: Inductively coupled argon plasma as an ion source for mass spectrometric determination of trace element, Anal. Chem., 52, 2283-2289 (1980)
2. 2) Igarashi, Y., Kim, C. K., Takaku, Y., Shiraishi, K., Yamamoto, M. and Ikeda, N.: Application of inductively coupled plasma mass spectrometry to the measurement of long-lived radionuclides in environmental samples-A review, Analytical Sciences, 6, 157-164 (1990)
3. 3) Date, A. R. and Gray, A .L. (eds.) : “Application of Inductively Coupled Plasma Mass Spectrometry”, Blackie, Glasgow and London (1989)
4. 6) Pentreath, R. J.: The analysis of Pu in environmental samples: A brief historical perspective, Appl. Radiat. Isot., 46, 1279-1285 (1995)
5. 7) Aston, S. R., Avogadro, A., Murray, C. N. and Stanners, D. A.: Theoretical and practical problems in the evaluation of physicochemical forms of transuranics in the marine environment. Impacts of Radionuclide Re-leases into the Marine Environment, 143-154 (1981)