Apparatus for applying liquid samples to surfaces

Details Apparatus for applying liquid samples to surfaces Apparatus for applying liquid samples to surfaces

1977-09-19

1979-07-17

Marcus, Michael S.

Chemical apparatus and process disinfecting, deodorizing, preser

Control element responsive to a sensed operating condition

422 70, 23230B, 734256, 222160, B01L 302, G01N 112, G01N 3106, G01N 3108

Patent

active

041615085

ABSTRACT:
An apparatus for applying liquid samples to surfaces, particularly to the separating layer used in thin-layer chromatography and comparable techniques, consisting of a guided pipette which contains the sample, can be placed on the surface with an adjustable contact pressure and which can be removed therefrom again, the apparatus having an electromagnet, the strength of the magnetic field of which can be adjusted so that it holds the vertically freely movable pipette hovering at the required height in relation to the surface, lifts it away from the surface or allows it to rest on the surface under the influence of the force of gravity.

REFERENCES:
patent: 3189413 (1965-06-01), Davis
patent: 3234796 (1966-02-01), Leonards
patent: 3508442 (1970-04-01), Lightner et al.
patent: 3728079 (1973-04-01), Moran
patent: 3730002 (1973-05-01), Penton
patent: 3900289 (1975-08-01), Liston
patent: 3913636 (1975-10-01), Mochida
patent: 4070156 (1978-01-01), Moran

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