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Methods of analysis by the U.S. Geological Survey National Water Quality Laboratory [microform] : determination of organophosphate pesticides in whole water by continuous liquid-liquid extraction and capillary-column gas chromatography with flame photometric detection / by Virendra K. Jha and Duane S. Wydoski (Water-resources investigations report ; 03-4139)

Methods of analysis by the U.S. Geological Survey National Water Quality Laboratory [microform] : determination of organophosphate pesticides in whole water by continuous liquid-liquid extraction and capillary-column gas chromatography with flame photometric detection / by Virendra K. Jha and Duane S. Wydoski (Water-resources investigations report ; 03-4139)
Microform図書
2003<YCA-I 19.42/4:03-4139>
National Diet Library
  • Author HeadingJha, Virendra K. (Virendra Kumar) , 1946- Wydoski, Duane S Geological S...

Methods of analysis by the U.S. Geological Survey National Water Quality Laboratory [microform] : determination of organophosphate pesticides in bottom sediment by gas chromatography with flame photometric detection / by Virendra K. Jha and Duane S. Wydoski (Water-resources investigations report ; 02-4222)

Methods of analysis by the U.S. Geological Survey National Water Quality Laboratory [microform] : determination of organophosphate pesticides in bottom sediment by gas chromatography with flame photometric detection / by Virendra K. Jha and Duane S. Wydoski (Water-resources investigations report ; 02-4222)
Microform図書
2002<YCA-I 19.42/4:02-4222>
National Diet Library
  • Author HeadingJha, Virendra K. (Virendra Kumar) , 1946- Wydoski, Duane S Geological S...

Methods of analysis by the U.S. Geological Survey National Water Quality Laboratory : determination of organophosphate pesticides in filtered water by gas chromatography with flame photometric detection / by Virendra K. Jha and Duane S. Wydoski (Water-resources investigations report ; 02-4071)

Methods of analysis by the U.S. Geological Survey National Water Quality Laboratory : determination of organophosphate pesticides in filtered water by gas chromatography with flame photometric detection / by Virendra K. Jha and Duane S. Wydoski (Water-resources investigations report ; 02-4071)
Microform図書
<YCA-I 19.42/4:02-4071>
National Diet Library
  • Author HeadingJha, Virendra K. (Virendra Kumar) , 1946- Wydoski, Duane S Geological S...

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