Journal ArticleDOI
Enantioselective fate of chiral chlorinated hydrocarbons and their metabolites in environmental samples
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TLDR
Gas chromatographic enantioseparation of chiral organochlorines (α-HCH, cis-and trans-chlordane, heptachlor, heptonachlor epoxide, oxychlordANE, o,p′-DDT, compounds of technical toxaphene, stable atropisomeric PCBs and methylsulfonyl-PCBs) has been achieved during the last decade as mentioned in this paper.Abstract:
Gas chromatographic enantioseparation of chiral organochlorines (α-HCH, cis- and trans-chlordane, heptachlor, heptachlor epoxide, oxychlordane, o,p′-DDT, compounds of technical toxaphene, stable atropisomeric PCBs and methylsulfonyl-PCBs) has been achieved during the last decade. For this purpose chiral stationary phases based on cyclodextrin derivatives have been applied in combination with GC/ECD, GC/MS, MDGC, and MS/MS. With these techniques methods have been developed which have been used to study the enantioselective fate of the chiral organochlorines. Changes in the enantioratios and conclusions drawn are reviewed.read more
Citations
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Enantioselectivity in environmental safety of current chiral insecticides
TL;DR: Dramatic differences between enantiomers were observed in their acute toxicity to the freshwater invertebrates Ceriodaphnia dubia and Daphnia magna, suggesting that the aquatic toxicity is primarily attributable to a specific enantiomer in the racemate.
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Enantioselective phytoeffects of chiral pesticides.
Weiping Liu,Jing Ye,Meiqing Jin +2 more
TL;DR: This review summarizes the enantioselective effects of chiral plant growth regulators on plants and the phytotoxic and biotransformation effects ofchiral herbicides and several persistent organic pollutants (POPs) on plants.
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Enantioselective bioactivity, acute toxicity and dissipation in vegetables of the chiral triazole fungicide flutriafol
TL;DR: The systemic assessments of the triazole fungicide flutriafol stereoisomers on the enantioselective bioactivity, acute toxicity and environmental behavior may have implications for better environmental and ecological risk assessment.
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Development of an enantiomer-specific stable carbon isotope analysis (ESIA) method for assessing the fate of α-hexachlorocyclo-hexane in the environment.
Silviu-Laurentiu Badea,Silviu-Laurentiu Badea,Silviu-Laurentiu Badea,Carsten Vogt,Matthias Gehre,Anko Fischer,Andrei-Florin Danet,Hans-Hermann Richnow +7 more
TL;DR: The linearity of the α-HCH ESIA method shows that carbon isotope ratios can be obtained for a signal size above 100 mV, and suggests that enantiomeric and isotope fractionation can serve as an indicator for biodegradation and source characterization of α- HCH in the environment.
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Interaction of chiral herbicides with soil microorganisms, algae and vascular plants.
TL;DR: General trends in the enantioselective toxic effects of different herbicides in vascular plants and algae are found, which will be helpful for pesticide risk assessments as well as for the management of applying enriched-enantiomer herbicides.
References
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Book
Stereochemistry of Organic Compounds
TL;DR: Stereochemistry of Alkenes Conformation of Acyclic Molecules Configuration and conformation of cyclic Molecule Stereoselective Synthesis Chiroptical Properties Chirality in Molecules Devoid of Chiral Centres as discussed by the authors.
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Polychlorinated biphenyls (PCBs) and polybrominated biphenyls (PBBs): biochemistry, toxicology, and mechanism of action
TL;DR: The results clearly show that like "dioxin", the PCBs and PBBs elicit their effects through a cytosolic receptor protein which preferentially binds with the toxins which are approximate isostereomers of 2,3,7,8-TCDD.
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Glossary of terms used in physical organic chemistry (IUPAC Recommendations 1994)
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Organochlorine contaminants in arctic marine food chains: accumulation of specific polychlorinated biphenyls and chlordane-related compounds
TL;DR: Polychlorinated biphenyl congeners and chlordane-related compounds as well as DDT, hexachlorocyclohexane, toxaphene, and chlorobenzenes were determined in pooled arctic cod muscle and polar bear fat and in the blubber and liver of 59 ringed seals from the east-central Canadian Arctic.
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Enantioselective determination of chiral organochlorine compounds in biota by gas chromatography on modified cyclodextrins
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