A versatile, temperature controlled apparatus is presented, which generates deeply cooled liquid microjets
of condensed gases, expelling them via a small aperture into vacuum for use in photoelectron spectroscopy
(PES). The functionality of the design is demonstrated by temperature and concentration dependent PES
measurements of liquid ammonia and solutions of KI and NH4I in liquid ammonia. The experimental setup
is not limited to the usage of liquid ammonia solutions solely.