Comparison of Several Solvents for Extracting Root-Absorbed Radioactive Dieldrin and Lindane Residues from Wheat Plants1

Autor:	J. G. Saha
Rok vydání:	1971
Předmět:	Ethanol Chloroform Chromatography Ecology Extraction (chemistry) food and beverages General Medicine Biology medicine.disease chemistry.chemical_compound Dieldrin chemistry Insect Science medicine Acetone Methanol Dehydration Lindane
Zdroj:	Journal of Economic Entomology. 64:50-53
ISSN:	1938-291X 0022-0493
DOI:	10.1093/jee/64.1.50
Popis:	Efficiencies of acetonitrile, acetone, ethanol, and methanol in extracting root-absorbed 14C-dieldrin and 14C-lindane residues from wheat plants were compared. Single extraction with these solvents in a blender recovered 68-82% dieldrin and 75-96% lindane residues. Double extraction with acetonitrile recovered 92% dieldrin. Soxhlet extraction with 1:1 methanol:chloroform recovered more than 99% of dieldrin or lindane residues. Dehydration of fresh plants reduced dieldrin extraction efficiency of acetonitrile, while hydration of air-dried plant tissues increased recovery efficiency. Only 13% dieldrin was lost from fresh wheat plants during 24 hours of air drying at room temperature, and 30% was lost by oven drying 4 hours.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::0c5567e74ec7e5f9db87ae98775935a7 https://doi.org/10.1093/jee/64.1.50 Zobrazit plný text záznamu