![Characterization of non-extractable residues of the fungicide dithianon in soil using ^1^3C/^1^4C-labelling techniques [An article from: Environmental Pollution]](https://www.ebooknetworking.net/books/B00/0RR/bigB000RR3UP8.jpg)
Characterization of non-extractable residues of the fungicide dithianon in soil using ^1^3C/^1^4C-labelling techniques [An article from: Environmental Pollution]
Book Details
PublisherElsevier
ISBN / ASINB000RR3UP8
ISBN-13978B000RR3UP3
AvailabilityAvailable for download now
Sales Rank99,999,999
MarketplaceUnited States 🇺🇸
Description
This digital document is a journal article from Environmental Pollution, published by Elsevier in 2005. The article is delivered in HTML format and is available in your Amazon.com Media Library immediately after purchase. You can view it with any web browser.
Description:
The fate of the ^1^4C-labelled fungicide dithianon in soil is characterized by the formation of non-extractable, ''bound'' residues of ~63% of applied amount in 64d. Humic acids containing these ''bound'' residues were isolated after conducting degradation studies of the active ingredient in an orthic luvisol under standardized conditions. In the same way, ^1^3C-labelled dithianon was incubated in an artificial soil which was produced by humification of ^1^3C-depleted straw in an incinerated soil. The ''bound'' residues of the ^1^3C-labelled dithianon in the humic acid fraction of the artificial soil were analyzed using ^1^3C-NMR techniques. There was no evidence of a covalent bonding of the residues to the humic substances. Results of polarity gradient high performance thin layer chromatography (AMD-HPTLC) of ''bound'' residues of the ^1^4C-labelled dithianon in the humic acid fraction indicate a sequestration process of metabolites into the humic substance as a possible binding mechanism.
Description:
The fate of the ^1^4C-labelled fungicide dithianon in soil is characterized by the formation of non-extractable, ''bound'' residues of ~63% of applied amount in 64d. Humic acids containing these ''bound'' residues were isolated after conducting degradation studies of the active ingredient in an orthic luvisol under standardized conditions. In the same way, ^1^3C-labelled dithianon was incubated in an artificial soil which was produced by humification of ^1^3C-depleted straw in an incinerated soil. The ''bound'' residues of the ^1^3C-labelled dithianon in the humic acid fraction of the artificial soil were analyzed using ^1^3C-NMR techniques. There was no evidence of a covalent bonding of the residues to the humic substances. Results of polarity gradient high performance thin layer chromatography (AMD-HPTLC) of ''bound'' residues of the ^1^4C-labelled dithianon in the humic acid fraction indicate a sequestration process of metabolites into the humic substance as a possible binding mechanism.
