Cuvettes and UV-cuvettes enable precise results in spectroscopy due to an optically perfect transmission range. Disposable plastic cuvettes for the UV/VIS range are ideal for the photometric determination of proteins, ssDNA, dsDNA or RNA. Contaminations are reduced to a minimum. Can be used in many wavelength ranges.
Specially designed for photometric determination of proteins, ssDNA, dsDNA, RNA and oligonucleotides in the UV range / Ideally suited for measurements at 260 nm, 280 nm and in the visible range / Standard 10 mm light path / No need for cleaning, no associated risk of sample carryover or cross-contamination / Sample volumes as small as 70 µl are sufficient / Two different center heights (8.5 mm and 15 mm) allow the use without adapter in most commercial spectrophotometers: Amersham Biosciences, Analytik Jena, Biochrom, WPA, Eppendorf®, PerkinElmer InstrumentsTM, ThermoSpectronic, etc. / Round caps provide tight seal and allow storage of samples down to -20 °C / Colored caps available for easy sample identification
Ideally suited for determinations in water analysis, chemistry, and in life science applications / Usable with most polar solvents, acids and alkaline solutions / Drastically reduced risk of contamination and lower costs compared to quartz glass cuvettes / UV-Cuvette semi-micro: Filling volume 1.5 to 3 ml, UV-Cuvette macro: Filling volume 2.5 to 4.5 ml Ideal for kinetic measurements /Minimal variation of extinction values / Clear and clean optical path / Recessed windows / Arrow mark to indicate direction of transmission / Resealable packaging /1000 cuvettes assorted by cavity numbers.
BRAND UV-cuvettes can be used for photometric measurements between 230 and 900 nm.
BRAND PS cuvettes can be used for photometric measurements between 340 and 900 nm.
The differences in the transmission curves of the cuvettes are caused by different wall thicknesses. While the wall of macro- and semimicro cuvettes is about 1 mm thick, the micro cuvettes show a wall thickness of 0,65 mm only. This results in better light transmission of the micro cuvettes.
The center height z is the distance between the bottom of the cuvette and the center of the beam of light. Because photometers can vary in the beam height (and so in the center height z), BRAND offers its UV-cuvette micro with two different center heights, 8.5 and 15 mm.
BRAND PMMA cuvettes can be used for photometric measurements between 300 and 900 nm.
For fluorescence measurements cuvettes must have four optical windows.
The UV polymer should not be used above 70°C, so BRAND UV-cuvettes are not autoclavable. BRAND offers UV-cuvettes micro individually wrapped (7592 15 and 7592 35); these cuvettes are free of DNase, DNA and RNase.
All BRAND cuvettes have a light path of 10 mm.
Polystyrene (PS) should not be used above 70°C. PS cuvettes are not autoclavable.
