永久
发表于 2025-3-28 15:01:28
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不利
发表于 2025-3-28 20:52:02
A Rapid Analytical Method for Persistent Pesticides in Proteinaceous Samples,d, simple, and highly sensitive method for the detection and estimation of chlorinated hydrocarbon insecticides in proteinaceous materials. The following procedure has been applied successfully to about 3000 samples of this type in our laboratory and has been particularly useful for analysis of DDT
floaters
发表于 2025-3-29 00:23:24
Secretion of DDT in Milk, milk. However, examination of the pesticide input from these sources frequently does not account for the level of pesticide residue found in the corresponding milk. Attempts to explain the discrepancy between the amount of pesticide residue found in milk and the amount which one can predict should
interrupt
发表于 2025-3-29 05:47:51
,Confusion of Identification of o,p’-Kelthane as Heptachlor in Orange Rind Extractives,he season with the acaricide 1,1-bis (£-chlorophenyl)-2,2,2-trichloroethanol (Kelthane) had revealed the presence of an unknown compound not present in control samples. It had a tlc R. value and a glc retention time practically identical with those of heptachlor and was reported as apparent heptachl
scrape
发表于 2025-3-29 07:13:32
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Mri485
发表于 2025-3-29 11:50:40
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影响带来
发表于 2025-3-29 17:59:04
Metabolites of Methyl- and Dimethylcarbamate Insecticide Chemicals as Formed by Rat Liver Microsomed. Biologically active metabolites may be formed, particularly if the modification on the molecule occurs at a site other than the toxophoric grouping. In this respect, metabolites of carbamates formed by mechanisms other than initial hydrolysis at the carbamic ester site may be of importance. Mamma
倔强一点
发表于 2025-3-29 21:12:34
Gas Chromatographic Measurement of Toxaphene in Milk, Fat, Blood, and Alfalfa Hay,ecome apparent with the widespread use of this pesticide. Graupner and Dunn (1) originally described a spectrophotometric procedure that could determine toxaphene in the 20 to 100 μg range. Extensive cleanup procedures were employed before analysis.
多山
发表于 2025-3-30 01:27:09
Thin Layer Chromatography of Dithiocarbamate Fungicides,uld distinguish the residue of the applied substance from its transformation products. Thin layer chromatography proved to be the most effective method for this separation and the following procedure was developed.
易怒
发表于 2025-3-30 05:30:00
Automated Determination of Orthophosphate: An Application Designed Especially for the Combusted Prohosphorus pesticide residues, will remove much of the tedium of the analysis as well as improve the precision. It should also apply to the orthophosphate combusted product of organophosphorus pesticide residues no matter how this product is obtained, i.e., from combustion tube furnace, Parr bomb, or