Enhanced Chemical Resistance Cuvettes with ≤2 mm Path Length

Optical UV Fused Quartz or Borosilicate Glass Construction
Two Polished Windows for Absorption Spectroscopy
Micro Cuvettes with 350 µL or 700 µL Capacity

CV1G035AE

Borosilicate Glass Micro Cuvette, 350 µL

CV2G07AE

Borosilicate Glass Micro Cuvette, 700 µL

CV1Q035AE

UV Fused Quartz Micro Cuvette, 350 µL

CV2Q07AE

UV Fused Quartz Micro Cuvette, 700 µL

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Overview
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UV Fused Quartz and Borosilicate Glass Cuvette Transmission

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Typical transmission measured through an empty cuvette in air. The dashed lines indicate the recommended wavelength range for each cuvette material: 190 nm - 2.5 µm for UV fused quartz and 340 nm - 2.5 µm for borosilicate glass.

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Cuvettes with an engraved "Q" are constructed from quartz.

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Cuvettes with an engraved "G" are constructed from borosilicate glass.

Features

Enhanced Chemical Resistance Cuvettes with Stoppers Crafted from:
- UV Fused Quartz Glass for the 190 nm - 2.5 µm Wavelength Range
- Borosilicate Glass for the 340 nm - 2.5 µm Wavelength Range
Two Polished Windows for Spectroscopy Applications
350 µL and 700 µL Capacities Available
Rectangular Footprint with 1 mm or 2 mm Transmitted Path Length

Our Cuvettes are high-quality cells designed to hold liquid samples. Cuvettes with UV fused quartz glass construction can be used with UV light at wavelengths as low as 190 nm, as well as with visible and infrared light up to 2.5 µm, while cuvettes made from borosilicate glass are appropriate for the 340 nm to 2.5 µm wavelength range. Ideal for absorption spectroscopy experiments, each cuvette features two polished sides that can be cleaned using standard optics cleaning procedures. Each cuvette comes with a PTFE stopper top that prevents evaporation and provides a seal.

We offer standard micro sizes (see the tables below for more information), sold in packs of two. All cuvettes are engraved on the outer surface with the Item # and either a letter "Q" or “G”, which designates quartz or borosilicate glass construction, respectively, and the typical input side.

These cuvettes are assembled by heating the quartz or borosilicate glass to a high temperature and applying pressure to adhere the pieces together.

Solvent Compatibility
Enhanced chemical resistance cuvettes are compatible with corrosive solutions such as aqua regia. Contact Tech Support for instructions on cleaning the cuvettes found on this page.

For applications that require cuvettes with a standard 12.5 mm square outside dimension, we offer UV Fused Quartz Cuvettes with 10 mm Path Length. These 10-mm-path-length cuvettes, which are available in macro, micro, and super micro sizes, are compatible with most spectrophotometers as well as our Cuvette Holder and Fiber Optic Filter and Cuvette Mounts. In contrast, the ≤2-mm-path-length cuvettes sold on this webpage are not designed for use with our Cuvette Holder and Fiber Optic Holder and Cuvette Mounts.

Posted Comments:

Doyk Hwang (posted 2022-09-22 15:00:40.38)

It's great that Thorlabs now sells 1 and 2 mm pathlength cuvettes, but there is one problem with these cuvettes I think. The inlet of these cuvettes is too narrow so the liquid inside is not pouring out even if I take the cuvette upside down or shaking it, making the cuvette cleaning process quite difficult and cumbersome. Can you widen the inlet so we can easily pour out the liquid inside and clean it much easier? Thank you!

cdolbashian (posted 2022-10-04 04:02:31.0)

Thank you for contacting Thorlabs. Per our experience, a syringe will help to aspirate the liquid inside the cuvette. Please take care to keep the cuvettes free from scratches during cleaning.

UV Fused Quartz Cuvettes with Stoppers, 2 Polished Sides

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UV Fused Quartz Cuvette, Airtight Stopper

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Stopper Wedges into the Top of the Cuvette

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See the Red Docs Icon ( info icon

) for complete mechanical drawings of each cuvette.

Enhanced Chemical Resistance Cuvettes
Two Polished Windows for Absorption Spectroscopy
PTFE Stopper Included with Each Cuvette
Fabricated from JGS1 UV Fused Quartz (190 nm - 2.5 µm)
350 µL and 700 µL Capacities Available
Sold in Packs of 2

These UV Fused Quartz Cuvettes have two polished sides for use in absorption spectroscopy experiments and two frosted sides for handling. The polished sides can be cleaned using standard optics cleaning procedures. Since these cuvettes only have two polished windows, they are not appropriate for use in fluorescence spectroscopy where it is necessary to have four polished windows to allow measurement of the fluorescence at right angles to the beam path.

These cuvettes have a rectangular footprint and are available with 350 µL or 700 µL capacities. Note that the size of the outer dimensions and the transmitted path length through the sample vary for each item; please see the table below for detailed information. Each cuvette is engraved with the Item # as well as a letter "Q" that designates its quartz construction, and each comes with a PTFE stopper to create a seal and to prevent evaporation and atmospheric contamination of the contents. The stopper should be inserted gently into the top of the cuvette; excessive force will cause difficulty with removing the stopper.

For enhanced chemical resistance, each cuvette is made by finely polishing the quartz pieces before attaching them together, consequently providing smoother seams. This method allows the cuvette to hold solutions with corrosive properties, similar to those of nitrohydrochloric acid (aqua regia), without being damaged.

Item #	Type	Volume	Width	Thickness	Path Length	Height	Assembly Process	Material	Wavelength Range
CV1Q035AE	Enhanced Chemical Resistance Micro	350 µL	12.5 mm ± 0.1 mm	3.5 mm ± 0.1 mm	1.0 mm ± 0.05 mm	52.0 +0.0 / -0.5 mm	Monolithically Co-Fired^a	JGS1 UV Fused Quartz	190 nm - 2.5 µm
CV2Q07AE	Enhanced Chemical Resistance Micro	700 µL	12.5 mm ± 0.1 mm	4.5 mm ± 0.1 mm	2.0 mm ± 0.05 mm	52.0 +0.0 / -0.5 mm	Monolithically Co-Fired^a	JGS1 UV Fused Quartz	190 nm - 2.5 µm

The quartz pieces that make up these cuvettes are finely polished before heating. After being heated to a high temperature, pressure is applied to adhere the pieces together.

Borosilicate Glass Cuvettes with Stoppers, 2 Polished Sides

Zoom

Borosilicate Glass Cuvette, Airtight Stopper

Click to Enlarge
Stopper Wedges into the Top of the Cuvette

Click for Details
See the Red Docs Icon ( info icon

) for complete mechanical drawings of each cuvette.

Enhanced Chemical Resistance Cuvettes
Two Polished Windows for Absorption Spectroscopy
PTFE Stopper Included with Each Cuvette
Fabricated from Borosilicate Glass (340 nm - 2.5 µm)
350 µL and 700 µL Capacities Available
Sold in Packs of 2

These Borosilicate Glass Cuvettes have two polished sides for use in absorption spectroscopy experiments and two frosted sides for handling. The polished sides can be cleaned using standard optics cleaning procedures. Since these cuvettes only have two polished windows, they are not appropriate for use in fluorescence spectroscopy where it is necessary to have four polished windows to allow measurement of the fluorescence at right angles to the beam path.

For enhanced chemical resistance, each cuvette is made by finely polishing the borosilicate glass pieces before attaching them together, consequently providing smoother seams. This method allows the cuvette with to hold solutions with corrosive properties, similar to those of nitrohydrochloric acid (aqua regia), without being damaged.

Item #	Type	Volume	Width	Thickness	Path Length	Height	Assembly Process	Material	Wavelength Range
CV1G035AE	Enhanced Chemical Resistance Micro	350 µL	12.4 mm ± 0.1 mm	3.5 mm ± 0.1 mm	1.0 mm ± 0.05 mm	48.0 ± 0.3 mm	Monolithically Co-Fired^a	Borosilicate Glass	340 nm - 2.5 µm
CV2G07AE	Enhanced Chemical Resistance Micro	700 µL	12.4 mm ± 0.1 mm	4.5 mm ± 0.1 mm	2.0 mm ± 0.05 mm	48.0 ± 0.3 mm	Monolithically Co-Fired^a	Borosilicate Glass	340 nm - 2.5 µm

The glass pieces that make up these cuvettes are finely polished before heating. After being heated to a high temperature, pressure is applied to adhere the pieces together.