초록 ▼

A non-reactive electrospray needle structure that can be used with relatively low electrical potential introduced externally at a selectable location along the length of the needle structure. The electrospray device or apparatus includes a non-conductive tube with an inner diameter, with one end of

A non-reactive electrospray needle structure that can be used with relatively low electrical potential introduced externally at a selectable location along the length of the needle structure. The electrospray device or apparatus includes a non-conductive tube with an inner diameter, with one end of the tube having a reduced inner diameter thereby forming a tip. The tube is configured to have a fracture in it, positioned a predetermined or selectable distance from the tip. An electrically conductive path, such as a wire or electrode, is provided external to the tube and proximate to the fracture. A collar surrounds the tube proximate the fracture. The electrically conductive path provides a voltage potential to charge the spray. The collar maintains the conductive path in place, seals the tube at the fracture, and provides structural strength. In one embodiment, the tube is packed with a binding material to form a column bed.

대표청구항 ▼

[ What is claimed is:] [1.] An electrospray apparatus comprising:a non-conductive tube with an inner diameter and a first end and a second end;a fracture in said non-conductive tube, said fracture positioned a predetermined distance from one of said first end and said second end; andan electrically

[ What is claimed is:] [1.] An electrospray apparatus comprising:a non-conductive tube with an inner diameter and a first end and a second end;a fracture in said non-conductive tube, said fracture positioned a predetermined distance from one of said first end and said second end; andan electrically conductive path to said fracture on an exterior of said non-conductive tube.