Reagent injectors

Many of today's most popular assays require the ability to monitor a signal during and after the addition of a reagent. All BMG LABTECH microplate readers, with exception of the SPECTROstar® Nano, can be equipped with up to two software-controlled reagent injectors.


Injectors enable reagent delivery to any plate format from 6-384 wells. Injection timing, injection speed, delivery volume, and the ability to inject different volumes in each well of a plate can all be controlled through the Reader Control Software. Multiple additions from one injector into the same well can be performed as well.


The reagent injectors are easily cleaned, chemically inert, and can be configured with various syringe types depending on the customer's need. High volume syringes are available for large volume buffer delivery and low volume syringes are available for precious, expensive, or temperature-sensitive reagents.


The injector module is fully integrated into the reader platform and not a bulky add-on. This provides several advantages:

  • No increase in the microplate reader footprint
  • Reagents are light-protected
  • Transparent tubes allow for detection of impurities and bubbles
  • Reagents are equilibrated at almost the same temperature as the measurement chamber
  • Significant reduction in wastage thanks to exceptionally small dead volumes and a back flush function

Injection at point of measurement

Some assays produce signals that decay very quickly after reagent addition, becoming unreadable within a few seconds upon injection. Without the ability to read and inject simultaneously, the user can lose valuable signal information.


BMG LABTECH microplate readers allow simultaneously injection and measurement. It is even possible to read and perform two injections at the same time. Simultaneous injection and reading ensure that users experience no loss of data and save valuable laboratory time.

Compatible readers

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