Title:
METHOD OF EVALUATING SEGREGATION AT SOLID-LIQUID INTERFACE AND SEGREGATION APPARATUS THEREFOR
Document Type and Number:
WIPO Patent Application WO/1992/021954
Kind Code:
A1
Abstract:
A method and an apparatus for evaluating a segregation at a solid-liquid interface, capable of specifying and measuring quantitatively a segregation substance, that is, a substance which precipitates preferentially on a solid surface from a liquid or remains preferentially in the liquid (or elutes from the solid surface into the liquid), on the contrary. A reception table (2) having a shallow cup-like upper surface is disposed inside a container (1). After a predetermined inert gas is introduced into the container (1), a sample sheet (3) placed on the reception table (2) is downwardly curved by deformation means such as a vacuum suction mechanism. Thereafter, a predetermined solution is dropped onto the sample sheet (3) through a capillary (4) and the dropped solution is evaporated by a mercury lamp (7). After predetermined evaporation is completed, the sample sheet (3) is taken out from the container (1), and is analyzed by an appropriate one of measuring instruments attached to the apparatus. The instrument used depends on a segregation substance.
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Inventors:
OHMI TADAHIRO (JP)
Application Number:
PCT/JP1992/000608
Publication Date:
December 10, 1992
Filing Date:
May 13, 1992
Export Citation:
Assignee:
OHMI TADAHIRO (JP)
International Classes:
G01N1/40; G01N25/14; G01N13/02; G01N33/38; H01L21/304; H01L21/306; (IPC1-7): G01N13/00
Foreign References:
| JPS63210748A | 1988-09-01 | |||
| JPS50151480A | 1975-12-05 |
Other References:
See also references of EP 0694778A4
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