Milliliter Samplings

Cuvette Holder 1 cm Cuvettes
Cuvette Holders
The CUV-UV Cuvette Holder for 1 cm path length cuvettes couples via SMA-terminated optical fibers to our high-sensitivity miniature fiber optic spectrometers and light sources to create small-footprint spectrophotometric systems for absorbance/transmission measurements of aqueous solutions. This compact cuvette holder is optimized for UV-VIS-NIR (~200 nm-2 µm) applications
The cuvette holder for 1-cm path length cuvettes consists of just a few key components:
• a pair of adjustable 5-mm diameter f/2 quartz collimating lenses;
• spring-loaded ball plungers for precise positioning of the cuvette;
• a built-in 1/4-inch filter slot;
• internal channels designed to accept a constant-temperature water source (for heating and cooling of the base and cuvette, by means of convection);
• SMA 905 terminations for coupling to fiber optics.
A black cuvette cover is available to eliminate ambient light and to block the light path when taking dark current measurements.
Order Numbers
CUV-UV Cuvette Holder for UV/VIS/NIR (200 nm - 2 µm)
501603 Black Cuvette Cover (optional)
4-way Cuvette Holder for 1 cm Cuvettes

The CUV-ALL 4-way Cuvette Holder for 1-cm path length cuvettes is equipped with fiber optic couplings at each of four quartz f/2 collimating lenses, which couple to optical fibers to either read or illuminate the sample. When used with spectrometers and light sources, CUV-ALL Cuvette Holders can measure absorbance, fluorescence, scattering or any combination of these optical phenomena. The CUV-ALL collimators are optimized for measurements from 200 nm to 2 µm. The lenses can be used for “straight-through” measurements, as well as for scattering or fluorescence measurements. The CUV-ALL Cuvette Holder accepts 1 cm cuvettes; adjustable spring-loaded pistons hold the cuvette against two reference surfaces. The assembly also has a built-in 1/4-inch filter slot, especially convenient for tailoring (with bandpass filters) excitation wavelengths in fluorescence measurements. In addition, for temperature stabilization, the cuvette holder's base plate has internal channels that can connect to a circulating, constant-temperature water source.

Order Numbers
CUV-ALL 4-way cuvette holder (200 nm - 2 µm)
CUV-UV-FL Cuvette Holder with Fluorescence Option
CUV-MSP Mirrored Screw Plug
Cuvette Holder for Fluorescence Applications
Cuvette Holder for Fluorescence Applications
The CUV-UV-FL is a fluorescence option of the CUV-ALL, available with two, instead of four collimators, to allow perpendicular sample excitation and detection. To increase the efficiency, mirrored screw plugs (CUV-MSP) are available to reflect excitation and emission light back into the sample cell.
Order Numbers
CUV-UV-FL Fluorescence Cuvette Holder
501603 Black Cuvette Cover (optional)
CUV-MSP Mirrored screw plugs
Cuvette Holder for 10 cm Cuvettes
The CUV-UV-10 is a cuvette holder for 10 cm cuvettes and couples to a light source and a spectrometer via optical fibers. The cuvette holder can be used for absorbance and transmission measurements of aqueous solutions. Each cuvette holder assembly comes with a black cover, which can be used to eliminate ambient light. WPI’s CUV2071-1, a 10 cm cuvette with a sample volume of 28 mL can be used to perform measurements with a 10 cm pathlength.
Order Numbers
CUV-UV-10 Cuvette holder for UV/VIS/NIR, 10 cm