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Titlebook: Residue Reviews / Rückstands-Berichte; Residues of Pesticid Francis A. Gunther Conference proceedings 1962 Springer-Verlag Berlin Heidelber

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發(fā)表于 2025-3-23 13:40:48 | 只看該作者
d biosphere, continued with its natural dynamics. We humans multiply quickly and we occupy more and more space and need more and more natural resources. Thus, in the field of Earth Sciences, our economic activities interfere with the operation of this system on an unprecedented scale. Scientists tal
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發(fā)表于 2025-3-23 14:04:45 | 只看該作者
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發(fā)表于 2025-3-24 00:57:19 | 只看該作者
Pesticide residue analysis by oxygen flask combustion,by shaking an alkaline solution contained in the flask and analysis of the resulting solution followed. This procedure has been modified by . (1960) and . and . (1961) for direct combustion of evaporated crop extracts containing chlorinated pesticides.
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發(fā)表于 2025-3-24 03:57:33 | 只看該作者
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發(fā)表于 2025-3-24 09:09:10 | 只看該作者
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發(fā)表于 2025-3-24 19:37:45 | 只看該作者
The use of fluorometric measurements for determination of pesticide residues,he residue chemist to explore every possible means of physical detection which is applicable to submicrogram quantities of material. The use of fluorometric methods is of value in this field because it is possible to measure accurately quantities of material which are onlv a tenth, a hundredth, or e
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發(fā)表于 2025-3-25 01:57:58 | 只看該作者
Pesticide residue analysis by microcoulometric gas chromatography, combination of these methods has not been used previously. Coulson .. (1960) have developed a singularly rapid and sensitive method through instrumentation for the determination of pesticide residues containing halogen or sulfur, making use of these principles. The microcoulometric gas chromatograp
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