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Mass Spectrometry Microbial Identification System

VITEK® MS is an automated mass spectrometry microbial identification system that uses Matrix Assisted Laser Desorption Ionization Time-of-Flight (MALDI-TOF) technology. 


Disclaimer: Product availability varies by country. Please consult your local bioMérieux representative for product availability in your country. 

System Overview

Clear, Fast, Accurate Identification

In just minutes, VITEK® MS can provide single-choice identifications at the species, genus, or group level. With both VITEK® MS and VITEK® 2, clinicians receive quick information to adjust therapy for better overall patient care and outcomes.

Our proprietary Advanced Spectra Classifier offers robust and accurate results needed for optimal patient-care decisions. The VITEK® MS system reads each spectrum as a series of peaks that are detected and sorted by mass and intensity. With the use of the Advanced Spectra Classifier, better discrimination is provided as every peak is considered in the calculation of the identification result. 


Optimized Workflow and Seamless Identification and Antimicrobial Susceptibility Testing (ID/AST) Integration

VITEK® MS is designed specifically for optimized workflow in the microbiology laboratory. Its 4-slide capacity enables parallel preparation of samples by four different technologists at separate workstations, with placement on the instrument at the same time. With 48 sample spots per target slide, 192 isolates can be tested per run.

  • Guided slide preparation for ID and connection with AST using the VITEK® MS Prep Station
  • Very few steps to obtain a result – same day ID and AST (with VITEK® 2) results
  • Less hands-on time to focus on more value added tasks
  • Variable throughput for large and small labs (1-192 samples/run)


VITEK® SOLUTIONS: Complete Traceability and Flexibility

Along with VITEK® 2, VITEK® MS is part of our integrated ID/AST and blood culture offer, combined to meet both your routine and critical testing needs. With our offer, you leverage your expertise to deliver test results that impact timely, appropriate therapy.

VITEK® MS provides complete traceability and flexibility that contributes to overall lab efficiency and confidence:

  • Barcodes on reagents and disposables provide traceability by automatically linking ID with AST results for each isolate.
  • Disposable slides:
    • Reduce risk of erroneous results from contamination
    • Reduce chemical safety hazard issues
    • 3 acquisition areas or groups, each with a calibration spot
  • Automatic verification of operation, tuning and alignment is transparent to the user


Comprehensive, regularly-updated database

VITEK® MS V3.2.0 is a database. Population-built, it allows for better discrimination between species and accounts for diversity among strains within the same species. You get robust and accurate performance with no need to modify scores. 

Spectra for each species are included; these are generated from:

  • An average of >12 isolates/species and average of 35 spectra/species
  • Geographical diversity of isolates
  • Isolates of different sample origins (e.g. blood, tissue, etc.)
  • Isolates subcultured on different media
  • Isolates from different incubation times

The VITEK® MS database is consistently expanding to add new emerging pathogens and clinically relevant species. With the most recent update, anaerobes, moulds, yeast, and mycoplasma as well as BrucellaCandida auris, and Elizabethkingia anophelis are among the significant new species that have been added to the new VITEK® MS V3.2.0 database. This follows a previous update that included Mycobacteria, Nocardia, and moulds.

The expanded database enables you to reliably identify 1,316 species, with an average of 12 strains/species covering microbial and technical variability.

Important new additions in the VITEK® MS V3.2.0 database are:

  • Brucella: Rare, but difficult to recognize and hazardous. VITEK® MS is the first MALDI-TOF System to include Brucella in its database. Reduce exposure with rapid, safe, and accurate ID.
  • Candida auris: An emerging multidrug-resistant fungal pathogen, associated with high mortality and commonly misidentified.
  • Elizabethkingia anophelis: A once-harmless microbe that has now evolved into a pathogen causing increased infection in ICU patients.

The update includes 217 new bacteria species including 40 anaerobes.

  • 55 new fungal species
  • Differentiation within the Acinetobacter baumannii complex: now Acinetobacter baumannii, Acinetobacter calcoaceticus, Acinetobacter nosocomialis, and Acinetobacter pittii
  • Differentiation between Proteus penneri and Proteus vulgaris
  • Addition of Mycoplasma pneumoniae to the marked database (non-clinically validated species in the US database)
  • Database also contains: Mycobacteria, Nocardia, and moulds, among them Mycobacteria tuberculosis (TB), non-tuberculous mycobacteria (NTM), dermatophytes and dimorphic fungi, including the most prevalent species relevant to patient infections

Services & Support 

A Committed Service Partner

VITEK® MS is part of a comprehensive service offering from consultancy to installation and connectivity through training, verification, workflow optimization, and ongoing support. Optimize adoption, processes and system uptime with our expert lab consultancy team.

System Services

To provide you with the highest level of customer service, training, and support we have two dedicated teams to answer your everyday questions and needs:

  • Local subsidiary teams
  • Global Customer Service (GCS)

Every bioMérieux subsidiary and distributor has its own Local Customer Service to ensure support is close at hand. Our objective is to ensure you receive first class personalized service regardless of your geographical location.

These local teams can rely on global level teams, which have an international vision of the in vitro diagnostics market, for extra support when required on instruments, reagents, information technology, and service solutions.

Learning Services

bioMérieux wants to make your life easier. Login or Register to our new Resource Center website. Here you can access Quality Control Certificates (QCC), Instructions For Use (IFU), and System Manuals along with other file types.


Logistic Services

We can help optimize your logistics to increase operational efficiency, allowing you to refocus on your core expertise. We know how to optimize supply operations, prevent shortage and waste, and monitor your supply performance for optimal results. 

We will work alongside you to simplify your supplies and guarantee the availability of key products, ensuring the efficient continuity of your activities. We serve customers in more than 160 countries, and process 1 million orders per year. Our experts prepare and ship your order in full compliance with the strictest regulatory and quality standards. 



Collaborative every step of the way, we bring you customizable services that help you create the balance that makes the most of your lab talent and expertise. To really get to know your lab, we “roll up our sleeves” and work by your side to:

  • Support rapid decisions
  • Increase productivity
  • Maximize quality

When we combine your knowledge of your lab and our expert outside perspective, we have the winning formula to enhance use of technology, improve workflow and processes, and make the most of staff skills.



Cybersecurity is integrated into the design of VITEK® MS and includes continued surveillance by our security experts.

System Services

Systems are a major investment for your lab. Night and day, you depend on them to help you provide clinicians with fast, reliable results for better patient care. With System Services from bioMérieux: maximize routine lab workflow, cover increased productivity needs, and deliver high quality patient results confidently and continuously.





Specs & Resources

Technical Specifications


  • 337 nm nitrogen laser, fixed focus
  • Maximum pulse rate - 50 Hz (50 laser shots per second)
  • Near normal (on-axis) incidence of the laser beam to the sample
  • Laser power and laser aim under software control



  • Linear flight tube of 1.2 m drift length
  • Vacuum maintained by two turbomolecular pumps (nominal 250 l/s) with rotary backing
  • Beam blanking to deflect unwanted high intensity signals (e.g. matrix ions)



  • Size (w h d) - 0.7 m x 1.92 m x 0.85 m, minimum distance to wall at back is 100 mm
  • Weight - 330 kg excluding data system


Installation Requirements

  • Electrical
    • 200 VAC, 50/60 Hz, 1000 VA single phase OR
    • 230 VAC, 50/60 Hz, 1000 VA single phase
  • A ‘clean’, stable, and continuous mains supply is required for reliable operation
  • Temperature - ambient 18° to 26° C
  • Relative humidity - less than 70% non-condensing
  • Vibration free, firm, level floor, at least 330 kg supported at four points


Mass Range

  • 1 to 500 kDa




VITEK® MS Brochure