Spectrophotometer Quartz Cuvettes for UV Range (Bestseller List)

  2 Windows Clear Quartz Cuvettes (Cuvet) for UV applications and A List of  In-Stock Products for Quick Navigation

Check Cuvette Knowledge by Article UV-vis Spectrophotometer Cuvette Selection Guide

In this article:

• Why use quartz cuvettes in the spectrophotometer?
• Why quartz cuvettes from AirekaCells?
• Our Quartz Cuvette Series

1. UV-vis Spectrophotometer ES Quartz Cuvettes, 2 Windows Polished

1.1 ES Quartz Cuvettes Optical Path Length =10mm

1.2 Quartz Cuvettes Optical Path Length <10mm

1.3 Quartz Cuvettes Optical Path Length>10mm

2. Fluorometer/ Fluorescence Quartz Cuvettes, 4 Windows Polished

2.1 ES Quartz Cuvettes Optical Path Length =10mm

2.2 Quartz Cuvettes Optical Path Length <10mm

Short and Dual-Path Length Quartz Cuvettes

2.3 Quartz Cuvettes Optical Path Length>10mm

3. Flow-through Cuvettes

Single/Dual Channel Flow Cuvettes

Demountable Cuvettes

Flow-Through Quartz Cuvettes

4. Custom Design Cuvettes

FAQs

• What are Quartz Cuvettes?
• What are short path length cuvettes and why are they used? (sample too concentrated)
• What are long path length cuvettes and why are they used? (sample too diluted)
• Why is it important not to have fingerprints on the cuvette?
• Why is it important to align the cuvette in the sample holder the same way each time?

Why use quartz cuvettes in the spectrophotometer?

The use of quartz cuvette is not always necessary and it is dependent on the wave length range been targeted. The transmission rate for quartz cuvette is high (83% or higher) @ UV length range whereas plastic (PS or PMMA) or Optical glass don't. 

When organic solvents are used, glass or quartz are preferable because the corvettes display higher resistance when compared to others made from plastic. Generally, quartz cuvette can be used over and over and the display higher transparency and accuracy of measurement. 

Why quartz cuvettes from AirekaCells?

• ES Quartz Cuvettes (Cuvets) for UV/VIS Measurements with Superior Transmission Performance
• 2 or 4 Clear Windows for Spectrophotometer and Fluorescence Analysis
• Sub-Micro, Semi-Micro, and Macro Quartz Cuvettes with <100 µL, 350-1700µL, 3500µL, and Larger Volume
• Wide Range of Cuvettes for Use in Spectroscopy and Cytometry with Optical Path Lengths Spanning 0.1 to 100mm
• Z Dimension of 8.5mm, 15mm, and 20mm suitable for Various of Manufacturers
• Exceptional Accuracy of Optical Path Length and Parallelism
• Very High-Temperature Stability and Chemical Resistance
• Outstanding Measurement Reproducibility and Prevention of Cross-Contamination
• Guaranteed Transmission of 83% From 190nm up to 2500nm of the ES Quartz Material

Our Quartz Cuvette Series

Unique Technological Expertise For Exact Measurement and Precise Results

Micro/Semi/Macro Volume	Lid/Stopper/Screw Cap
Spectrophotometer Cuvettes	Fluorometer Cuvettes
Single/Dual/Demountable	Tailored Requirements
Flow-Through Cells	Custom Cuvettes

Cuvette Features:

• Accurate measurements guaranteed
• Batch-produced OEM products
• Proven accuracy in terms of optical path length and parallelism
• High-temperature resistance and chemical resistance
• Guaranteed measurement reproducibility

The AirekaCells quartz cuvettes are designed to hold liquid solution samples. The material ES quartz glass has high transmission rate at UV wavelength range low to 190nm, and excellent performance under visible light range. With IR quartz, you can expect to work with a range up to 3500nm, which covers infrared light testing experiments perfectly.

Our quartz cuvettes are either two windows clear, for use in absorption spectroscopy experiments, or four windows clear, for use in fluorescence spectroscopy. The cuvettes can be cleaned using standard cleaning procedures.

For different budgets and sealing requirements, different spectroscopy cuvette caps are available. To block dust and particles a Teflon lid is used, while a Teflon stopper or screw cap is used to prevent evaporation and ensure strict sealing purpose. The silicon lid is also useful for the balance of sealing and its cost effectiveness as shown below. 

The standard 10mm transmission path length of AirekaCells quartz cuvettes with an outer dimension of 12.5x12.5mm is compatible with most of the spectrophotometers in the market. Sub-micro, semi-micro and macro cuvettes are available, which usually sold with a minimum of 2pcs however a single piece MOQ is also negotiable by request.

Above the specified, a wider range of cuvettes for use in spectroscopy and cytometry with optical path lengths spanning 0.1 to 100mm are listed with stock. 

The sub-micro and micro cuvettes are usually fitted with glue. These cuvettes should not be used together with Benzene, toluene, aqua Regis, ethanol, corrosive solutions, or other similar substances, as they may degrade the bonds between the pieces and cause leakage in the cuvettes. Use with Aqueous samples and Organic solvents should not be used for glued types. 

Use with Aqueous Samples and DO NOT Use Organic Solvents for Glued Types for Glued Cuvettes

On the other hand, other cuvettes are fused as one piece and are resistant to corrosive chemicals and high temperatures. When properly cleaned, they don't cause and cross contamination or leakage. 

Corrosive and High-Temperature Resistant Cuvettes

Browse A List of Stock Cuvettes:  https://airekacells.com/cuvettes

Below, We've prepare a list of quartz cuvette bestsellers for a quick selection:

1. UV-vis Spectrophotometer ES Quartz Cuvettes, 2 Windows Polished

Check A LIST of 4 Windows Clear Fluorometer Quartz Cuvettes

Product Advantages:

• High-Performance ES Quartz Material with Guaranteed Transmission Rate >83%
• Path Lengths of 0.1 to 100mm are Available in Stock Ready to Ship to Door
• Extremely High Parallelism of the Windows with a Tolerance of ±0.05mm
• Unique Surface Flatness of the Optical Windows of 0.01mm
• Wide Usage of Quartz Transmission Spectrum of 190nm-2500nm
• Exceptional Pair Variation of <0.1% for Reproducible Measurements Results 
• Very High-Temperature Stability and Chemical Resistance (Fused Type)

Transmission of UV-vis Quartz Cuvettes

Our ES quartz cuvettes with high transmission between 190nm and 2500nm, are ideal for working within UV- visible spectrum. 

The IR quartz cuvettes with high transmission between 220nm and 3500nm, offer excellent transmittance across the near - IR, and mid- IR spectra. 

When transmission values of cuvettes are been compared it is essential to ensure that same measurement conditions are put in place. Also note that the transmission curves shown we're plotted using measurements taken from empty cuvettes (2 windows). 

MORE INFORMATION ABOUT CUVETTE MATERIALS: https://airekacells.com/blog/cuvette-guide

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UV Cuvettes Sorted by Different Optical Path Lengths

The optical path length of a cuvette is the distance of light that goes through the interior walls of a cuvette.

On a standard spectrometer cuvette, the light path or path length will be the inner distance from the front window to the back window. The standard cuvette optical path length is 10mm.

1.1 ES Quartz Cuvettes Optical Path Length =10mm

The standard 10mm transmission path length of AirekaCells quartz cuvettes with an outer dimension of 12.5x12.5mm is compatible with most of the spectrophotometers in the market. Sub-micro, semi-micro and macro cuvettes are available, which usually sold with a minimum of 2pcs however a single piece MOQ is also negotiable by request. 

1.1.1 Standard 10mm Path Length Cuvette, 3.5mL  

• Two Clear Windows for Absorption Spectroscopy
• ES Quartz Material with High Transmission Rate >83%
• Wide Transmission Spectrum of 190nm-2500nm
• Fused Type, High-Temperature Stability and Chemical Resistance
• PTFE Cap Included with Each Cuvette to Prevent Contamination
• Sold in Packs of 2

Standard rectangular cuvettes (quartz cells)  are the most commonly used type in chemical analysis. The exterior dimension 45×12.5×12.5mm makes it possible for the  Cuvettes to be used with virtually every spectrophotometer and photo meter instrument currently in use. 

These cuvettes have an exterior height of 45mm, two clear windows and an open top. The cuvettes' walls and the bottom are smooth on the inside. On the outside, the light path windows are clear while the adjacent windows and the bottom are frosted. Typically, windows are 1.25mm thick and each cuvette in this range is supplied with a PTFE cover. 

Full List of 10mm Standard Cuvettes>>

Since these cuvettes only have two windows clear (polished windows), they are not ideal for use in fluorescence spectroscopy where it is necessary to have four windows clear (polished windows) to allow measurement of the fluorescence at  right angles to the beam path. AirekaCells offers fluorometer cuvettes with four windows clear.

1.1.2 Semi-Micro 10mm Path Length Cuvette, 0.35mL-1.7mL

Full List of 10mm Semi-Micro Cuvettes>>

Due to the small volume of our capacity starting from 0.35ml, our range of cuvettes is perfect for researchers who have limited quantities of samples or solutions. These fluorescence cuvettes enable you to use the minimum amount of solution, hence, you can conduct more experiments than you would normally be able to. 

1.1.3 Sub-Micro 10mm Path Length Cuvette, <350uL

Full List of 10mm Ultra Micro Cuvettes>>

Note:  These glued cuvettes should not be worked with on benzene, toluene, aqua regia, ethanol, corrosive solutions, or other similar substances, as they may degrade the  bonds between the pieces,  hence causing leakage in the cuvette. 

About Z dimension:

The Z dimension of a spectroscopy cuvette/cell is the distance from the bottom of the cuvette to the center of the sample window or aperture (the area through which the light passes). 

Z dimension is usually used with small volume cuvettes or flow-through cells when there is a restricted area window aperture.

Above the 10mm standard quartz cuvettes, a wider selection of cuvettes for use in spectroscopy and cytometry with optical path lengths spanning 0.1 to 100mm and above are also listed with stock.

1.2 Quartz Cuvettes Optical Path Length <10mm

When samples with high absorption coefficents that are too high for a standard 10mm path length cuvette, other types with path Lengths as short as 1mm are available. You may have a ten-times reduction in absorbance by simply swapping cuvettes, rather than diluting samples hence wasting time and solvent. 

Cuvettes of 1mm/2mm/3mm/4mm/5mm are listed below:

1mm Quartz Cuvette

Various solutions whose absorption coefficients are too high for a standard  path length cuvette, we have cuvettes with path lengths as short as 1mm. You can achieve a ten-times reduction in absorbance by simply swapping the cuvettes other than diluting the solutions and then wasting your time and solvent. 

Full List of Short Path Length Cuvettes

1.3 Quartz Cuvettes Optical Path Length>10mm   Macro Quartz Cuvette Path Length of 20/25/30/40/50/100mm

Full List of 2 Windows Macro Cuvettes>>

Fluorescence and Flow-Through All-Quartz Cuvettes

ALL-Quartz 4 Windows Clear Cuvettes Ideally Suited for Fluorescence and Flow-Through Spectroscopic Analysis

Check A LIST of 2 Windows Clear Spectrophotometer Quartz Cuvettes

Why use quartz cuvettes(cuvet) in the spectrophotometer?

It’s not necessary to always use quartz cuvettes and it depends on the wavelength range you are targeting. Quartz cuvettes have a high transmission rate (80% or higher) @ UV wavelength range while Optical Glass or Plastic (PS or PMMA) don’t.

If organic solvents are involved, glass or quartz cuvettes are the preferred choices as these cuvettes display higher resistance compared to variants made from plastic. In general, quartz cuvettes display greater transparency and accuracy of measurement, and they can be re-used many times.

Why choose your quartz fluorescence cuvettes?

• ES Quartz Cuvettes (Cuvets) for UV/VIS Measurements with Superior Transmission Performance
• 3 or 4 Clear Windows for Fluorescence Analysis
• Sub-Micro, Semi-Micro, and Macro Quartz Cuvettes with <100 µL, 350-1700µL, 3500µL, and Larger Volume
• Wide range of cuvettes for use in spectroscopy and cytometry with optical path lengths spanning 0.1 to 100mm
• Z Dimension of 8.5mm, 15mm, and 20mm suitable for Various of Manufacturers
• Exceptional Accuracy of Optical Path Length and Parallelism
• Very High-Temperature Stability and Chemical Resistance
• Outstanding Measurement Reproducibility and Prevention of Cross-Contamination
• Guaranteed Transmission of 80% From 190nm up to 2500nm of the ES Quartz Material

The Quartz Cuvette Series

Unique Technological Expertise For Exact Measurement and Precise Results

Fluorometer Cuvettes	Flow-Through Cells	Customized Cuvettes

2. Fluorometer/ Fluorescence Quartz Cuvettes, 4 Windows Polished

2.1 Cuvette Optical Path Length =10mm

Standard 10mm Path Length Cuvette, 3.5mL

The most commonly used type of Cuvette in chemical analysis is Standard rectangular cuvettes (quartz cells).  It has an exterior dimension of 45×12.5×12.5mm which allows the cuvettes to be used with virtually every spectrophotometer and photo meter instrument currently in use. 

These cuvettes have an exterior height of 45mm, two clear windows and an open top. Inside the walls of the cuvette and the bottom are made smooth. On the outside, the light path windows are clear while the adjacent windows and the bottom are frosted. Typically, windows are 1.25mm thick and each cuvette in this range is supplied with a PTFE cover. 

In fluorescence spectroscopy experiments , Fused Quartz Cuvettes with four windows clear(polished sides)  are used. The four polished windows allow measurement of the fluorescence at right angles to the beam path and standard cleaning procedure should be used for cleaning. 

Full List of 10mm Standard Fluorometer Cuvettes>>

Despite these cuvettes been designed for use in fluorescence, the through-beam windows can be used independently for other spectroscopic applications. AirekaCells also offers cuvettes with two windows clear (polished sides)  and two frosted sides specifically  designed for these other applications.  (check here).

Semi-Micro 10mm Path Length Cuvette, 0.35mL-1.7mL

Full List of Semi-Micro 4 Windows Cuvettes>>

Due to the small volume of our capacity starting from 0.35ml, our range of cuvettes is perfect for researchers who have limited quantities of samples or solutions. These fluorescence  cuvettes enable you to use the minimum amount of solution, hence,  you can conduct more experiments than you  would normally be able to. 

Sub-Micro 10mm Path Length Cuvette, <350uL

Full List of Ultra Micro Fluorescence Cuvettes>>

Note: These glued cuvettes should not be used with benzene, toluene, aqua regia, ethanol, corrosive solutions, or other similar substances, as they may degrade the bonds between the pieces and cause the cuvette to leak.

About Z dimension:

The Z dimension of a spectroscopy cuvette/cell is the distance from the bottom of the cuvette to the center of the sample window or aperture (the area through which the light passes).  Z dimension is usually used with small volume cuvettes or flow-through cells when there is a restricted area window aperture.

2.2 Cuvette Optical Path Length 1mm, 2mm, 3mm, 5mm (<10mm)

Short  and Dual Path Length Quartz Cuvettes

For solutions with absorption coefficients that are too high for a standard path length cuvette, we have cuvettes with path lengths as short as 1mm. You can achieve a  ten-times reduction in absorbance by simply swapping cuvettes, rather than wasting time and solvent by needing to dilute your solutions.

Full List of Short Path Length Cuvettes>>

Cuvettes With Dual-Path Lengths

We have a series of 4 window clear cuvettes which can be used for short and long path lengths simultaneously. For example, a 0.7ml volume cuvette with a path length of 2mm and a standard 10mm all rolled into a single piece. Simply put, the path length to be used is dependent on how you put the cuvette in your spectrophotometer. If the light beam enters through the front window, then you have a 10mm path length cuvette. Whereas, if the cuvette is rotated 90 degrees you have a 2mm path length. 

2.3 Cuvette Optical Path Length 20mm, 30mm, 40mm, 50mm, 100mm (>10mm)

3. Flow-through Cuvettes

Single/Dual Channel Flow Cuvettes

These flow-through cells with a narrow channel. Excellent for microscope-based spectroscopic analyses.

The Flow cells are used to allow the sample to pass through the cell and they are connected to the sample source via tubing. Long path length flow cells are useful for low concentration samples and need long path length, rectangular cell holder. 

Full List of Flow-Through Cuvettes>>

Demountable Cuvettes

Full List of Demountable Cuvettes>>

3. Custom Design Cuvettes

Flow-Through Quartz Cuvettes

Full List of Customized and Flow-Through Cuvettes>>

FAQ

What are Quartz Cuvettes?

UV-vis quartz cuvettes are designed to hold solution samples for spectroscopic experiments. Quartz cuvettes with 2 clear windows for absorption spectroscopy and quartz cuvettes with 3 or 4 clear windows (polished sides) for fluorescence spectroscopy are available with AirekaCells.

We have quartz cuvettes (some ultra or semi micro-volume cuvettes are glued) in stock which are fused cuvettes, suitable for wavelength 190nm~2500nm.  We can also supply IR fused quartz cuvettes for 220nm~3500nm and optical glass cuvettes for 340nm- 2500nm. Macro, semi-micro and ultra-micro volume sizes are all available. 

Besides the in-stock UV-vis quartz cuvettes listed below, many customized cuvettes are supplied to our clients. Please specify your material and dimension requirements by either sending us an email sales@airekacells.com or leave a message by live chat below. We will be more than happy to help you with your tailored needs.

All our in-stock UV-vis fused quartz cuvettes are made by a diffusion bonding method. Quartz is heated to a high temperature and then adhered together by applying pressure. UV-vis quartz cuvettes made in such a method have much stronger chemical and high-temperature resistance.

What are “short path length” cuvettes and why are they used? (sample too concentrated)

When high concentration samples are been used, the solution is diluted and this will allow for spectrophotometry measurement with a 10mm path length cuvette. However, there are samples that cannot be easily diluted. For instance, due to interaction with the solvent, some samples cannot be diluted as this will cause a change in the absorbance (i.e. shift in the peak wavelengths) 

In these cases when absorbance is high and the dilution of the solution is difficult " short path length cuvettes" is effective. Short path length cuvettes with optical path lengths of 1mm, 2mm, 3mm and 5mm are available. The results obtained by analyzing toluene with a 1mm quartz cuvette and a 10mm ones indicates that there is much less absorption saturation with the 1mm cuvette than there is with the 10mm cell. 

Solution analysis in the infrared region is a well-known application of measurement using a short path length cuvette. when 10mm cuvette is used for measurement in the near infrared region, saturation often occurs due to absorption by the solvent, making it difficult to ascertain the absorption of the sample. A short path length cuvette is used to prevent absorption saturation due to the solvent. 

The optical path length of the cell is selected based on the size of the absorbance or transmittance of a low or high concentration chemical samples. 

Browse a List of Short Path Length Cuvettes>>

What are “long path length” cuvettes and why are they used? (sample too diluted)

For different solution analyses Cuvettes with a standard optical path length of 10mm are used. However, if the sample concentration is low, it may not be possible to obtain enough absorbance using a quartz of all this size. Although, concentrating the sample will allow for the use of 10mm cuvette, concentrating is a difficult in instances when the sample vaporizes or undergoes a chemical change during the concentration process.  

In such instances, measurements using a "long path length" is effective. Long path length Cuvettes with optical path lengths of 20mm, 30mm, 40mm, 50mm and 100mm are used. The absorbance increases proportionately to the cuvettes’ optical path length. Results obtained when 10-mg/L potassium permanganate solution was analyzed with a 10mm cuvette and a 100m one shows that the absorbance of the 100m cuvette is ten times that of the 10mm cell. 

Turbidity measurement of water is a well-known application of analysis using a long path length cuvette. 50mm and 100mm cells are used to analyze samples with low turbidity. ​

Browse a List of Long Path Length Cuvettes>>

Why is it important not to have fingerprints on the cuvette?

To avoid interference, finger prints should not be made on the Cuvettes so as to ensure full light absorption in the Spectrophotometer. This produces accurate readings of the absorbance. 

Why is it important to align the cuvette in the sample holder the same way each time?

It is important to align the cuvette in the sample holder each time so as to ensure that the dimensions of the wall is not different as this may affect the intensity of light passing through the cuvette. Aligning consistently help to achieve accurate readings for absorbance. 

Further to Check a LIST of

2 or 4 Windows Spectrophotometer, Fluorometer, and Flow-Through Cuvettes

To the best of our knowledge, the technical information provided here is accurate. However, AirekaCells assumes no liability for the accuracy of this information. The values provided here are typical at the time of manufacture and may vary over time and from batch to batch.