MALDI-TOF Organism Identification

Pure Culture Identification

Item No.  680000196  |  Catalog No.  MALDITOF-ID

  • Organism identification directly from a Soleris vial or an agar plate.
  • Five-day turnaround time from a pure culture on an agar plate.
  • Laboratory testing handled by our in-house experts.
  • Reliable and accurate results are provided in a detailed report.
This item has shipping restrictions.
$57.75 each
In stock
Out of stock
Expect availability in 2-4 weeks
Minimum quantity required: 1
This item must be ordered in multiples of one case. Quantity per case: 1

MALDI-TOF Organism Identification testing provides results, typically to the species level, using the Bruker MALDI-TOF Biotyper.

Using mass spectrometry, a fresh culture sample can be analyzed and identified in minutes by comparing its peptide and protein fingerprint to a database containing several thousand species. You will receive a report within five days of pure culture with the best match, along with a ranked list of the top ten matching patterns for each sample submitted.

Positive Soleris® vials or pure cultures can be submitted for identification.

Brand Soleris®
Analyte Microorganism
Package Weight kg


What is MALDI-TOF?

MALDI-TOF stands for Matrix Assisted Laser Desorption and Ionization with Time of Flight mass spectrometry. A microorganism colony is spotted onto a target which is then struck by a laser. The laser liberates proteins from the sample and ionizes them so that they become charged. Then, the charged proteins travel through the mass spectrometer and the mass of each is determined. Each microorganism generates a unique fingerprint of protein masses which is compared to a database to find a match.

How Much Does It Cost?

The price for pure cultures is $55 per sample and $87.50 per sample for Soleris® vials.

What Can I Ship?

You may ship pure cultures on agar plates or in liquid media. Positive Soleris vials can be shipped directly. Note: All samples should be properly sealed to prevent leakage and microorganism contaminations. Overnight and refrigerated shipping are highly recommended to help prevent organism damage from temperature changes during shipping.

Where Do I Ship It To?

All samples should be shipped to the following address,
Attn: MALDI Lab
301 N Hosmer St
Lansing, MI 48912

How Long Do My Results Take?

There is a maximum five-day turnaround from the time a pure culture is isolated until the results are reported.

How Accurate Are the Results?

With a good score of ≥ 2.0, the results are generally accurate to the genus and species level. Some closely related species can only be differentiated to the genus level. For strain level information, more specific molecular assays are required.

Where Can I Ship From?

We’re only accepting samples from the United States for MALDI analysis.

How Do I Receive Results?

Results are emailed as a PDF to the email address provided unless alternate reporting is requested.

How Can I Get Started?

Download the submission form, fill out your information, and send a copy with your samples.

If you have any additional questions about the MALDI service, they can be submitted to