Temperature-Controlled Cuvette Holders for Absorbance & Fluorescence
QPOD and QPOD3 are temperature‑controlled cuvette holders for absorbance and fluorescence spectroscopy, with built‑in stirring, four optical ports, and standard 905 SMA connections for easy laser setup integration. QPOD offers a wider temperature range (−35 °C to 110 °C), while QPOD3 covers 0 °C to 110 °C with air cooling and no external controller for space‑conscious labs.
Temperature‑controlled cuvette holders are commonly used in applications such as:
- DNA melting and annealing
- Protein thermodynamics
- Fluorophore characterization
- Enzyme kinetics
- On‑line thermocycling of biological particles
QPOD
Wide‑range temperature‑controlled cuvette holder
QPOD3
Compact air‑cooled temperature‑controlled cuvette holder
Specifications
| Part Number | QPOD | QPOD3 |
| Number of Samples Controlled | 1 Cuvette | 1 Cuvette |
| Designed Usage | Absorbance (laser), Fluorescence (laser), Raman | Absorbance (laser), Fluorescence (laser), Raman |
| Sample Container Size | Standard cuvette 12.5 mm x 12.5 mm (outside) | Standard cuvette 12.5 mm x 12.5 mm (outside) |
| Optical Ports per Cuvette | 4 | 4 |
| Optical Port Dimensions | 10 mm diameter round | 10 mm diameter round |
| Built-in Optical Slit Holders | 4 per cuvette | 4 per cuvette |
| Cuvette Z-Height | 8.5 mm | 15 mm |
| Windowed Jacket or Vest Available | Not Applicable | Not Applicable |
| Method of Heat Dissipation | Water Circulation | Air Circulation (Optional Water Circulation) |
| Programable Temperature Range | -40°C to 110°C | -40°C to 110°C |
| *Temperature Range | -35°C to 110°C | 0°C to 110°C |
| Extended Temperature Options Available | Yes, Only Heat option | Yes, Only Low Temp option with Bath 10 |
| **(Extended) Programable Temperature Range | -40°C to 150°C | -40°C to 110°C |
| **(Extended) Temperature Range | -35°C to 150°C | -35°C to 110°C |
| Thermistor Probes Accepted | Probe/10k | Probe/10k |
| Magnetic Stirring Motor Type | Stepper | Stepper |
| Default Stirring Speed | 1200 rpm | 1200 rpm |
| Stirring Speed Range | 1-2500 rpm | 1-2500 rpm |
| Stirring Speed Range (Best Performance) | 60-1800 rpm | 60-1800 rpm |
*The holder’s temperature performance depends on the operating environment and setup conditions, which must support proper heat dissipation and condensation reduction. While the listed temperatures are consistently achieved during testing, they are not guaranteed in all environments or setups. Meeting the ideal setup conditions outlined in the product’s manual is necessary to achieve specific temperature stages.
**The extended range applies only when all corresponding High or Low customization options are implemented. The higher limit is extended by the High Limit package option, and the lower limit is extended by the Low Limit package option.
Available Items
| Part Number | Description |
| QPOD | QPOD temperature-controlled sample compartment external TC 1 Temperature Controller provided without optics |
| QPOD-MPKIT | QPOD Multipurpose Kit: temperature-controlled sample compartment with external TC 1 Temperature Controller and lenses |
| QPOD-FLKIT | QPOD Fluorescence Kit: temperature-controlled sample compartment with external TC 1 Temperature Controller and lenses for fluorescence |
| QPOD-ABSKIT | QPOD Absorbance Kit: temperature-controlled sample compartment with external TC 1 Temperature Controller and lenses for absorbance |
| QPOD3 | QPOD3 temperature-controlled sample compartment with internal temperature controller provided without optics |
| QPOD3-MPKIT | QPOD3 Multipurpose Kit: temperature-controlled sample compartment with internal temperature controller and lenses |
| QPOD3-FLKIT | QPOD3 Fluorescence Kit: temperature-controlled sample compartment with internal temperature controller and lenses for fluorescence |
| QPOD3-ABSKIT | QPOD3 Absorbance Kit: temperature-controlled sample compartment with internal temperature controller and lenses for absorbance |