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- SUZUKI Shigeru
- Miyagi Prefectural Institute of Public Health and Environment
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- SATO Nobutoshi
- Miyagi Prefectural Institute of Public Health and Environment
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- TAKATSUKI Keigo
- Miyagi Prefectural Institute of Public Health and Environment
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- KAMO Eriko
- Miyagi Prefectural Institute of Public Health and Environment
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- KIKUCHI Hideaki
- Miyagi Prefectural Institute of Public Health and Environment
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- USHIZAWA Isamu
- Miyagi Prefectural Institute of Public Health and Environment
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- SAKAI Kei-ichi
- Miyagi Prefectural Institute of Public Health and Environment
Bibliographic Information
- Other Title
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- CNP代謝物の魚介類中残留
- CNP タイシャブツ ノ ギョカイルイチュウ ザンリュウ
- Residues of Paddy Herbicides in Fish and Shellfish. IV
- 水田除草剤の魚介類中残留 (第4報)
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Description
CNP (chlornitrofen), widely used as a paddy herbicide in Japan, is known to be converted readily to the corresponding amino derivative by reduction of the nitro group in the environment. An unusually high level of CNP residue concentration was reported in fresh-water fish and shellfish during the application period. Therefore, the occurrence of CNP reduction products in samples with high CNP residue levels was investigated and two unknown compounds were detected which were not identical with any standard pesticides on GLC. These two compounds, obtained in preparative scale experiments, showed high sensitivity in ECD-GC and NP-FID GC and gave CNP-amino compound on alkaline hydrolysis. From the GC-MS analysis and the above mentioned chemical property, the structures of these compounds were elucidated as CNP-acetamide (CNP-a) and CNP-formamide (CNP-f); these structures were confirmed by comparison of the products with authentic samples prepared from CNP.<br>Analytical methods for residual CNP-a and CNP-f were established and the residual concentrations were investigated in fresh-water fish and shellfish at regular intervals through a year at a fixed location in Miyagi prefecture. The maximum concentrations of CNP derivatives were 0.58ppm (CNP-a) and 0.24ppm (CNP-f) in freshwater clam, 0.04 (CNP-a) and 0.05ppm (CNP-f) in loach, and 0.06 (CNP-a) and 0.13ppm (CNP-f) in crucian carp during May and June, and these levels decreased rapidly after the end of the herbicide application period.
Journal
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- Food Hygiene and Safety Science (Shokuhin Eiseigaku Zasshi)
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Food Hygiene and Safety Science (Shokuhin Eiseigaku Zasshi) 24 (2), 187-193_1, 1983
Japanese Society for Food Hygiene and Safety
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Keywords
Details 詳細情報について
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- CRID
- 1390001204224889984
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- NII Article ID
- 130003692390
- 40001843929
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- NII Book ID
- AN00117741
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- ISSN
- 18821006
- 00156426
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- NDL BIB ID
- 2628816
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- Data Source
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- JaLC
- NDL Search
- Crossref
- CiNii Articles
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- Abstract License Flag
- Disallowed