METHOD AND APPARATUS FOR FEEDBACK CONTROLLED ELECTROSPRAY

摘要

A capillary nozzle (1) is provided with mobile phase by mobile phase pump (2 ), which pumps the mobile phase through the capillary to discharge from the nozzle at opening (I1) Electrical voltage is applied to capillary nozzle (1) by high voltage power supply (3) through electrode (4). A counter electrode (5), which is incorporated into to the inlet of a mass spectrometer is "grounded", i.e., is at ground potential. The light source (7) illuminates electospray (6) with intense light, which is positioned and focused by lens (71) to optimize contrast and the scattering of light by the electrospray (6 ) droplets.