Automated process for solvent separation of organic/inorganic su

Details Automated process for solvent separation of organic/inorganic su Automated process for solvent separation of organic/inorganic su

1984-10-19

1986-07-29

Lacey, David L.

Chemistry: analytical and immunological testing

Including sample preparation

Liberation or purification of sample or separation of...

210651, 210739, 436139, 422281, G01N 118

Patent

active

046031154

ABSTRACT:
There is described an automated process for the solvent separation of organic/inorganic substances that operates continuously and unattended and eliminates potential errors resulting from subjectivity and the aging of the sample during analysis. In the process, metered amounts of one or more solvents are passed sequentially through a filter containing the sample under the direction of a microprocessor control apparatus. The mixture in the filter is agitated by ultrasonic cavitation for a timed period and the filtrate is collected. The filtrate of each solvent extraction is collected individually and the residue on the filter element is collected to complete the extraction process.

REFERENCES:
patent: 4219530 (1980-08-01), Kopp et al.
patent: 4252769 (1981-02-01), Hood et al.
patent: 4311586 (1982-01-01), Baldwin et al.
Solvent Extraction of Coal Derived Products, Schweighardt et al., Analytical Chemistry, vol. 50, No. 9, Aug. 1978, pp. 1381-1382.

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