Robin Lea Sheppard

US Patent:

55875823, Dec 24, 1996

Filed:

May 19, 1995

Appl. No.:

8/444542

Inventors:

Jack D. Henion - Trumansburg NY
Robin L. Sheppard - Canandaigua NY
Timothy Wachs - Ithaca NY

Assignee:

Cornell Research Foundation, Inc. - Ithaca NY

International Classification:

B01D 5944
H01J 4900

US Classification:

250288

Abstract:

An interface for connecting an electrophoresis capillary to a mass spectrometer sprayer tube includes a first length of support tubing having an axial bore receiving and aligning the capillary and tube in end-abutting relationship at a junction. A solvent tube in a second length of support tubing intersects the first length of tubing in a T at the junction to supply makeup solvent to analyte flowing from the capillary to the sprayer tube. The tubing is secured in a T fitting which seals the tubing around the capillary, the sprayer tube, and the solvent tube.

US Patent:

6291121, Sep 18, 2001

Filed:

Sep 22, 2000

Appl. No.:

9/667232

Inventors:

William H. Hollenbaugh - Rochester NY
Timothy L. Lincoln - Rochester NY
Roger N. Ciccarelli - Rochester NY
Thomas R. Pickering - Webster NY
Dwight J. Tshudy - Webster NY
Robin L. Sheppard - Canandaigua NY
Amy L. Stamp - Rochester NY

Assignee:

Xerox Corporation - Stamford CT

International Classification:

G03G 909

US Classification:

4301087

Abstract:

Detection of the presence and amount of an external surface additive such as silica upon the surface of a toner is accomplished by treating the external surface additive with a fluorescent material and exposing the toner to ultraviolet light. This permits accurate quality control over the amount of the external surface additive required for the toner. The toner thus includes a binder resin and a colorant, and at least one external surface additive upon the surface of the toner, wherein the at least one external surface additive contains a fluorescent material. The fluorescent material may be a fluorescein dye.