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A survey of the environmental radiation in Nagano prefecture [Japan] from 1976 to 2000
2002
Nishizawa, C. (Nagano-ken. Research Inst. for Health and Pollution (Japan)) | Yamaura, Y.
Evaluation on organic pollution in river water using synthetic water quality index
2002
Yoshida, F. (Nagano-ken. Research Inst. for Health and Pollution (Japan)) | Uchida, H. | Seki, H.
Determination of etoxazole in agricultural products by GC/MS
2002
Tsukioka, T. (Nagano-ken. Research Inst. for Health and Pollution (Japan)) | Terasawa, J. | Sato, M.
A method by GC/MS has been established for the determination of Etoxazole in agricaltural products. Etoxazole was decomposed by acid contained in citrus fruits, but this decomposition could be prevented by addition of sodium acetate solution and extraction above pH 4. In the present method, the Etoxazole in agricultural products was extracted with acetone above pH 4, concentrated, and reextracted with n-hexane. After partition with acetonitrile followed by chromatographic clean-up with Florisil, the sample was subjected to GC/MS. The present method is excellent in sensitivity and has a detection limit of 0.002 micro g/g, and thus is about 10 times as sensitive as that of GC-NPD. The recovery by the present method is over 85% except for tea, the C.V. of recovery is less than 8%, and the method is applicable to actual samples.
Show more [+] Less [-]Behavior in water quality of leachate discharged from a municipal waste landfill after filling-up closing
2002
Oguchi, F. (Nagano-ken. Research Inst. for Health and Pollution (Japan)) | Hosoi, Y. | Kawamata, S. | Kohno, Y. | Suzuki, T. | Itoh, S. | Hayashi, H. | Ishikawa, T.
Concentration of volatile organic compounds in indoor air of private houses in Nagano prefecture [Japan]
2002
Yamashita, A. (Nagano-ken. Research Inst. for Health and Pollution (Japan)) | Yamaura, Y. | Koyama, K. | Komiyama, S.
