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User-customizable, air-cooled, Peltier-controlled cuvette holder with three optical ports
Product Overview

The qX3 is an air-cooled, temperature controlled cuvette holder with three optical ports for use with fluorescence spectroscopy or any experiment that can be performed using the three window beam path.

This standard model has an aluminum baseplate that allows for endless user-customizable mounting options. We also have mounting options compatible with a wide array of spectrophotometers from different manufacturers, or contact us today for a custom mounting solution to meet your experimental needs! Check out the available options below!

Part of our Air-Cooled line of cuvette holders, the qX3 is ideal for temperature ranges of 0 °C to 110 °C with no liquid cooling required. No longer is the instrument required to be tethered to a water bucket, chiller, or other circulating liquid reservoir in order to set and maintain precise sample temperatures.

The qX3 also has the ability to stir the sample at a steady reproducible rate, and the ability to flood the optics in a controlled gaseous environment while working at lower temperatures to maintain optical clarity. Use the qX3 to observe fluorescence spectra at precisely maintained temperatures, or for temperature ramping, to observe how fluorescence changes with temperature.

Purchase the low temperature option, consisting of a windowed vest and capability for liquid cooling, to easily operate the qX3 from 0 °C down to -35 °C. Purchase the extended temperature option to extend operation above 110 °C to 150 °C for all your high temperature experiments. Purchase both to create the ultimate, do-anything device!

It is easy to operate the qX3 using the TC 1 Temperature Controller, included in the purchase price. The sample temperature, stirring speed, and temperature ramp rate may be controlled manually using the TC 1 menu control buttons on the front panel, or by using Quantum Northwest’s computer control software,  T-App, available for purchase.

Product Features

Three optical ports
Rapid, precise temperature control
Precise stepper-motor-driven magnetic stirring
Lid to improve temperature stability
Threaded inserts to mount windows or filters
Optical slit holders to control illuminated volume
Optional extended temperature range
Windowed jacket available for temperature extremes
Dry gas purge for work at low temperature
Probe input for sample temperature
NIST-traceable temperature calibration

  • Technical Specifications
    Number of cuvettes controlled
    Typical use
    Standard cuvette size (outside)
    12.5 mm x 12.5 mm
    Optical ports per cuvette
    Optical port dimensions
    12 mm high x 10 mm wide
    Cuvette z-height
    15 mm
    Windowed vest available
    Factory set temperature range
    -40 °C to +110 °C
    Temperature range easily achievable
    -5 °C to +110 °C
    Range with low temperature option
    -35 °C to +110 °C
    Range with extended temperature option
    -35 °C to +150 °C
    Temperature precision
    ±0.02 °C
    Thermistor probes accepted
    Magnetic stirring motor type
    Magnetic stirring speed range
    1-2500 rpm
    Default stirring speed
    1200 rpm
    Stirring speed best performance
    60-1800 rpm
  • Basic Package

    qX3 – Temperature-controlled cuvette holder
    TC 1 – Temperature Controller
    NIST-traceable calibration and performance data
    Magnetic stir bar, tubing for dry gas and cables

  • Available Modifications

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