What are cuvettes used for?
A cuvette is a piece of laboratory equipment that is intended to hold samples for spectroscopic analysis. While cuvettes can be made of various materials, plastic cuvettes have the advantage of being less expensive and disposable and are often used in fast spectroscopic assays.
How much do cuvettes hold?
A standard volume cuvette holds a measuring volume of 3.5 mL. A semi micro cuvette volume holds samples of 0.35 mL – 1.7 mL. Among these types of short path length cuvettes may require cuvette mounts or spacers.
Do cuvettes absorb light?
The samples are prepared in cuvettes that are made using specialized plastics or quartz so that they do not absorb any light and will not affect our measurements.
How much is Spectrophotometer?
Laboratory Digital Spectrophotometer The price of Digital Spectrophotometer products is between ₹75,000 – ₹125,000 per Piece during May ’21 – Apr ’22.
What is the most commonly used cuvette?
The most common type of cuvette is square, with external dimensions of 12.5 x 12.5 mm. This format accommodates sample volumes from the microliter range (ultra-micro cuvettes) to the milliliter range (macro cuvettes) (figure 1).
What is beer Lambert law?
Beer’s law (sometimes called the Beer-Lambert law) states that the absorbance is proportional to the path length, b, through the sample and the concentration of the absorbing species, c: A α b · c. The proportionality constant is sometimes given the symbol a, giving Beer’s law an alphabetic look: A = a · b · c.
What does a monochromator do in a spectrophotometer?
A monochromator provides a wavelength selection option in microplate readers, spectrophotometers and other measurement instruments. It enables the spectral isolation of a wavelength from the beam of a light source.
What is a cuvettes used for?
Cuvettes are tube-like containers used to hold samples for spectroscopic analysis that delivers accurate and reliable results. They are made from quartz, plastic, polycarbonates or glass in various sizes and are scratch-resistant.
Where can I find alternatives to VWR products?
Alternatives may be available by searching with the VWR Catalog Number listed above. If you need further assistance, please call VWR Customer Service at 1-800-932-5000. Stock for this item is limited, but may be available in a warehouse close to you. Please make sure that you are logged in to the site so that available stock can be displayed.
What are cuvettes made out of?
They are made from quartz, plastic, polycarbonates or glass in various sizes and are scratch-resistant. Disposable cuvettes are preferred to prevent carry over of samples.
What are electroporation cuvettes made of?
Description: Cuvettes are constructed of high-quality polymethyl methacrylate (PMMA or “acrylic”) or polystyrene (PS), and provide accurate, reliable results. Description: VWR Signature™ Disposable Electroporation Cuvettes are designed for use with bacterial, yeast, fungi, and mammalian cells.