@article{oai:repo.qst.go.jp:00043950,
 author = {Yukawa, Masae and Iso, Hiroyuki and Kodama, Kumiko and Imaseki, Hitoshi and Aoki, Kazuko and Ishikawa, Yuuji and 湯川 雅枝 and 児玉 久美子 and 今関 等 and 青木 一子 and 石川 裕二},
 issue = {3/4},
 journal = {International Journal of PIXE},
 month = {},
 note = {Balance of essential elements in organisms might be changed by environmental stresses. Small fresh water fish, Medaka, was burdened with X-ray irradiation (total dose: 17Gy), keeping in salty water (70% NaCl of sea water) and keeping in metal containing water (10ppm of Cr and Co). These stresses are not lethal doses. Essential elements in liver, gall bladder, kidney, spleen heart and brain in the stress-loaded fish were measured by PIXE method and compared with a control fish to determine the effect of the stresses. Various changes of the elemental contents were observed. Effect of X-ray irradiation was the smallest among the stresses. Relatively high content elements such as P, S, Cl and K were hardly affected with the stresses examined in this work. The effect of Cr on the metal balance seems to be larger than the other stresses. As PIXE method can analyze many elements in a small sample simultaneously, change of elemental distribution in small organisms induced by environmental stresses can be determined readily.},
 pages = {203--210},
 title = {Metal Balance Shift Induced in Small Fresh Water Fish by Several Environmental Stresses},
 volume = {15},
 year = {2005}
}