Facile elimination of sulfur interference in pesticide analysis by gas chromatography.
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Chromatography, Gas↗
Biomedical subjects
R E Johnsen
Publications and source records attributed to R E Johnsen.
DDT metabolism in microbial systems.
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Animals↗
Respirator cartridge efficiency studies. 3. A mechanical breathing machine to simulate human respiration.
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Humans↗
Persistence of organochlorine insecticide residues in agricultural soils of Colorado.
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Aldrin↗
A simplified procedure for cleaning electron-capture detectors of the concentric-tube design.
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Insecticides↗
Activation and degradation efficiencies of liver microsomes from eight vertebrate species, using organophosphates as substrates.
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Animals↗
Ultrarapid extraction of insecticides from soil using a new ultrasonic technique.
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DDT↗