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Temperature-controlled Cuvette Holder
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The qpod™ is a
temperature-regulated sample compartment for fiber optic
spectroscopy that controls the temperature of standard
1-cm square cuvettes to +/-0.05 ºC. The unit includes a
Peltier controller, magnetic stirrer and fused silica
focusing lenses, and has SMA 905 connectors for easy
coupling to Ocean Optics spectrometers and accessories.
Each unit is calibrated against a NIST-traceable
thermometer; performance data is provided.
* The qpod is build for
cuvettes with a Z-dimension of 8.5 mm. |
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When combined with Ocean Optics
spectrometers and accessories, the qpod is especially useful for
absorbance and fluorescence measurements that require stringent
control of the sample’s temperature. Typical applications include
protein and DNA thermodynamics, fluorophore characterization, enzyme
kinetics and on-line thermocycling of biological particles.
The qpod was conceived by our channel partner Quantum Northwest as an improvement on its CUV-TLC-series Temperature-regulated Cuvette Holders. |
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The qpod is constructed of a single molded housing. A Peltier-controlled cuvette holder in the center provides temperature control and variable speed magnetic stirring and holds optical slits for limiting light access to the cuvette as needed. A dry gas purge may be used to minimize condensation when working at low temperatures.
SMA 905 fiber optic connections and high quality fused silica optics may be inserted in different combinations into optical ports in the walls surrounding the cuvette holder. Accessories such as polarizers and filter holders may be inserted into the light paths. Spherical mirrors may be used to enhance excitation or emitted light. All optics provide focusing and position adjustments for maximizing signal throughput.
Rapid and precise temperature control over a wide range of temperatures from -30º C to +105º C+0.05º C (controllable to even lower temperatures under special conditions)
Calibrated against a NIST-traceable thermometer with performance data provided
Designed for standard 1x1 cm square cuvettes or standard microcuvettes
Variable speed magnetic stirring to maintain uniform sample temperature
Dry gas purge to reduce condensation when working at low temperatures
Light tight cover with access cap providing a means of holding a thermistor probe in the cuvette
Collimating optics available for straight-through absorbance measurements
Imaging optics available for efficient excitation and light collection for fluorescent samples
Spherical mirror plugs available for enhancing excitation or emitted light
All optical components have focusing and position adjustments to maximize light throughput
Optical slits provided for limiting light access to the cuvette as needed
Filter holders for 12.5-mm diameter filters available for mounting on lens assemblies
Polarizer available for fluorescence measurements
Input jack on temperature controller to accept a thermistor probe for measuring sample temperature
Windows-based software available for external control of the temperature controller -- permitting complex experiments including temperature ramping
| Item | Description | Price |
| CUV-qpod-ABSKIT | Temperature Controlled Sample Compartment - Absorbance | $3740 |
| CUV-qpod-FLKIT | Temperature Controlled Sample Compartment - Fluorescence | $4240 |
| CUV-qpod-MPKIT | Temperature Controlled Compartment - Absorbance and Fluorescence |
$4280 |
| CUV-qpod | Temperature Controlled Sample Compartment - No Optics | $3320 |
| CUV-qpod-CL-UV | Collimating Lens for qpod Absorbance | $210 |
| CUV-qpod-IL-UV | Imaging Lens for qpod Fluorescence | $320 |
| CUV-qpod-MP | Mirror Plug for qpod Sample Compartment | $140 |
| CUV-qpod-POL | Polarizer for qpod Sample Compartment | $325 |
| CUV-qpod-FH | Holder for 12.5 mm Diameter Optical Filter for qpod | $65 |
| CUV-qpod-SER | Serial Interface for qpod External Computer Control | $160 |
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