Cornell Research Foundation Inc.

Xerox Corporation

Robin L Sheppard

Jack D Henion

Timothy Wachs

Roger N Ciccarelli

Thomas R Pickering

Timothy L Lincoln

William H Hollenbaugh, Jr

Amy L Stamp

Dwight J Tshudy

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.

Fluorescent treated external surface additives for toner

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.

Capillary electrophoresis-mass spectrometry interface

Self-aligning liquid junction

Growing community of inventors

Canandaigua, NY, United States of America

Robin L Sheppard