Positive controls for Ivd

In vitro diagnostics involves validation of the Pcr. Therefore we have developed non infectious positive controls for a number of viruses.

How to validate a Pcr set of primers for in vitro diagnostics?

Nucleai Acid Controls or Nattrols are safe Dna samples that can be used to validate your Pcr diagnostics.

Waht is the meaning of NATTROL?

Nucleic Acid Test conTROL, (one T stands for test and one T for the 4th letter in control)

For example Adenovirus Type 41 (Stool Matrix) (0.5 mL)
can monitor daily variations in reported Adenovirus Type 5 Stock (Qualitative) (1 mL)
We offer Full process control support to track DNA extraction and amplification measurement.


Traceable into WHO International Standards (where available)
Adenovirus Sort 31 Stock (Qualitative) (1 mL)

This Nattrol control may be used across various molecular testing platforms and assays
Adenovirus Type 40 (Stool Matrix) (0.5 mL)

*Patent Pending

info@lifescifeed.com for next day delivery and pricing in Gentaur Poland, Bulgaria and other countries.


This positive control will provide you with a consistent, reliable and accurate Quality Control solution.
Broad patent coverage* or pending patents
Life Science Feed will help out with identifying lab tendencies in Ivd assessment for ISO13485 in Europe. We offer free SOP for Research labs and fast notified body appointments.
We will supply your lab with an impartial, independent testing proficiency Assessment, Iso13485 certified.


Adenovirus Type 4 Stock (Qualitative) (1 mL)
Evaluate lot-to-lot consistency of test kits and assay reagents

Offered in Different formats (single or multiple analytes)
We will train and monitor laboratory personnel, BL2 level.


Purified, undamaged organisms


Regular use of NATtrol™ Controls may be utilized to identify infectious virus samples and specimens


Adenovirus Type 40 Stock (Qualitative) (1 mL)
Adenovirus Sort 41 Stock (Qualitative) (1 mL)
Non-infectious and fridge stable
ATtrol™ (Nucleic Acid Testing Control) products are the industry’s preferred standard for molecular diagnostics testing and may be utilized as separate (third party) quality control materials in Iso 13475 and iso9001 Ivd Ce aproovals.

How Nattrols are produced?

NATtrol positive controls and test validations are prepared from purified microorganisms that are grown in either cell culture, microbial culture or isolated in the plasma of infected people.


The NATtrol treatment modifies the surface and leaves the organisms non-infectious and fridge stable, while retaining the whole genome. The inactivation of organisms is confirmed by absence of expansion in validated tissue culture-based infectivity assays or in validated development protocols (as important ).

Bio-engineer Lieven Gevaert

University of Gent, Belgium