Bring the lab anywhere.
Real-time measurement of trace compounds in air.
Real-Time Chemical Ionization Mass Spectrometers
Instantaneous Analysis
Directly sample air to quantify, characterize, and report volatile organic and inorganic compounds (VOCs and VICs) in complex mixtures in real-time, without chromatography.
Unmatched Performance
Vocus delivers sub-ppt limits of detection for a diverse range of compound classes.
Built for Exploration
Laboratory performance that goes anywhere. A rugged, compact design means that your instrument goes where your sample is, not the other way around.

Features
Real-time Measurements
High Resolution Separation
Fast Reagent Ion Switching
Magnification Interface
Interchangeable CI Reactors
AIM Reactor
PTR Reactor
VUV Reagent Ion Source
Ion Mobility Mass Spectrometry
Real-time monitoring of isomer populations with ion mobility mass spectrometry. Learn More
Go Anywhere
Optimized for use in laboratory, industrial,
and mobile applications.







Flexible Ionization to Target Your Compounds of Interest
Vocus ionizes molecules by controlled reactions with reagent ions in a reactor.

Use one reactor with a single reagent ion
OR use one reactor that can switch between multiple reagent ions in a single experiment
OR interchange two reactors with different reagent ions