APPI/APCI Dual-Mode Ionization Source

The Atmospheric Pressure Photoionization (APPI) source, in conjunction with Atmospheric Pressure Chemical Ionization (APCI) allows independent APPI and APCI experiments with the ability to acquire APPI and APCI data in the same analysis.

Ionization Process

The IonSABRE™ APCI probe introduces samples into the ion source, which incorporates a Syagen Technologies 10.6 ev krypton discharge UV lamp. The lamp emits photons that excite analyte molecules and subsequently produce ions through electron ejection. In this process, sample molecules are preferentially ionized when the photon energy exceeds their ionization potential, but is lower than the ionization potential of the surrounding vaporized LC eluent.

Together, APPI and APCI provide you with the ability to comprehensively analyze low polarity and non-polar compounds in a single experiment.