Quantum Northwest Inc.

qpod 2e Peltier Temperature Control for Fiber Optic Spectrometers The qpod 2e is a complete sample compartment for fiber optic spectroscopy, including a Peltier-controlled cuvette holder.

qpod 2e

•	Rapid and precise temperature control from -30 °C to +105 °C ± 0.05 °C
•	Designed for standard 1 x 1 cm square cuvettes or standard microcuvettes with a z-height of 8.5 mm
•	Variable speed magnetic stirring to maintain uniform temperature in the cuvette
•	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 with focusing and position adjustments to maximize light throughput
•	Optical slits provided for limiting light access to the cuvette as needed
•	Optional filter holders for 12.5 mm diameter filters (25 mm filters may be used without holders).
•	Optional polarizer
•	Input jack on temperature controller to accept a thermistor probe for measuring sample temperature

Configurations available:

Product	Components
qpod 2e-ABSKIT Absorbance	• qpod Sample Compartment • Q-Blue • two QCL-UV Collimating Lenses
qpod 2e-FLKIT Fluorescence	• qpod Sample Compartment • Q-Blue • two QIL-UV imaging lenses • two QMP mirror plugs
qpod 2e-MPKIT Absorbance and Fluorescence	• qpod Sample Compartment • Q-Blue • two QCL-UV collimating lenses • two QIL-UV imaging lenses • two QMP mirror plugs

Example of Data Collected with a qpod:

Thermal melting of a synthetic DNA performed with three linear temperature ramps using a qpod

Cuvette Size and Types
The qpod holds a standard 10 x 10 mm path length square cuvette. To maximize thermal contact, the cuvette is held into one corner of a tower by a metal spring clip. The qpod is designed for a “z-height” of 8.5. Thus, the optical center line, or middle of the optical port, is 8.5 mm above the bottom surface of the cuvette. This is a convenient dimension because it minimizes the sample size in most cuvettes. It is also a standard height for microcuvettes and flow cells.

Availability
The qpod 2e can usually be shipped the day an order is received.

Quantum Northwest provides temperature-controlled cuvette holders and photoacoustic instrumentation