A pre-assembled, disposable cathode handler assembly facilitates automated or manual loading of a cathode with analyte for spectrometric analysis and is intended for a single use application. This cathode handler assembly is comprised of several parts which work cooperatively together to stabilize a separate cathode and direct an analyte into the cathode. A stopper and channeling unit are disposed in supporting interconnection with the cathode so as to maintain it in a stable orientation for loading. The channeling unit may be used in combination with a liner which also interacts with the cathode to guide the analyte into an interior chamber therein, and further contains an analyte cap holder. A stopper prevents the introduced analyte from escaping the cathode and a housing is connected exteriorly of the cathode and supporting components to further stabilize the cathode during the loading procedure. A loading base may be integrated to assist in manual loading of a cathode.