Modified soxhlet extractor for pedologic studies

Journal Article · Mon Nov 01 04:00:00 EST 1982 · Soil Sci. Soc. Am. J.; (United States)

DOI:https://doi.org/10.2136/sssaj1982.03615995004600060045x· OSTI ID:5467788

Sobek, A A; Bambenek, M A; Meyer, D

The soxhlet apparatus has been used in the laboratory to stimulate geochemical weathering; however, the high extraction temperatures required in the soxhlet do not represent a realistic simulation of the weathering environment. A modified design of the original soxhlet did not eliminate the problems of extraction temperature or inaccurate volumes of solvent passing through the sample. These problems were solved by moving the extraction chamber away from the upward path of the refluxing solvent. Extraction temperature differences (approximately 52/sup 0/C) were responsible for higher concentrations of leachate metal in the original soxhlet leachate when a minesoil sample was weathered. This modification permits exact volumes of solvent to be passed through the sample, as well as a reduction in extraction temperature that would allow study of the role of bacteria in the weathering process.

• Research Organization: Argonne National Lab., IL
• DOE Contract Number: W-31109-ENG-38
• OSTI ID: 5467788
• Journal Information: Soil Sci. Soc. Am. J.; (United States), Journal Name: Soil Sci. Soc. Am. J.; (United States) Vol. 46:6; ISSN SSSJD
• Country of Publication: United States
• Language: English

Related Subjects

510100* -- Environment
Terrestrial-- Basic Studies-- (-1989)
54 ENVIRONMENTAL SCIENCES
BACTERIA
BENCH-SCALE EXPERIMENTS
CHEMISTRY
DISSOLUTION
EXTRACTION
GEOCHEMISTRY
LEACHING
MICROORGANISMS
SEPARATION PROCESSES
SIMULATION
SOIL CHEMISTRY
SOILS
SOLVENT EXTRACTION
TEMPERATURE DEPENDENCE
WEATHERING