Spectrophotometers are used to measure the concentration of a known substance in a solution. They do this by passing a light through the substance and measuring light intensity as a function of wavelength. Either single beam or double beam spectrophotometers can be purchased. In a single beam spectrophotometer, a reference standard is used to measure light intensity before and after the sample is loaded. For double beam spectrophotometers the beam is split with one beam passing through the standard and the other through the sample to compare intensities. While single beam spectrophotometers are typically less expensive and have higher sensitivity, double beam spectrophotometers tend to be more stable and easier to use. Spectrophotometers are important pieces of equipment in chemistry, physics, biochemistry, clinical, and materials testing labs.
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| Company | Mettler-Toledo GmbH | Mettler-Toledo GmbH | Mettler-Toledo GmbH |
| Item | Excellence UV5Nano Spectrophotometer | Excellence UV5 Spectrophotometer | Excellence UV7 Spectrophotometer |
| Reviews | | | |
| Catalog Number | 30254729 | 30254725 | 30254726 |
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| Type | Micro-Volume UV/VIS | UV/VIS | UV/VIS |
| Wavelength Range | 190 to 1,100 nm | 190 to 1,100 nm | 190 to 1,100 nm |
| Wavelength Accuracy | ±0.9 nm | ±0.9 nm | ±0.5 nm |
| Scanning Speed | Minimal scan time at full range is 2 sec. | Minimal scan time at full range is 2 sec. | Minimal scan time at full range is 1 sec. |
| Optical System | Single Beam, Array | Single Beam, Array | Single Beam, Array |
| Light Source | Xenon flash lamp | Xenon flash lamp | Xenon flash lamp |
| Resolution | > 1.7 (toluene in hexane abs.) | > 1.5 (toluene in hexane abs.) | > 1.9 (toluene in hexane abs.) |
| Description | The UV5Nano UV/Vis spectrophotometer enables concentration and purity determination of nucleic acids and protein samples down to 1 µL. Optional automation and 21 CFR part 11 compliance meet the needs of life science and biopharma labs.
Ready-to-Use Bio-Applications
Pre-programmed applications for The UV5Nano UV/Vis spectrophotometer enables concentration and purity determination of nucleic acids and protein samples down to 1 µL. Optional automation and 21 CFR part 11 compliance meet the needs of life science and biopharma labs.
Ready-to-Use Bio-Applications
Pre-programmed applications for Nucleic Acids (DNA, RNA, mRNA, Oligos, etc.) with QC Ratios (260/280 and 260/230), protein assays, and cell density.
Micro Volume and Cuvette Analysis
Full-spectrum micro volume and cuvette measurements combined in one instrument to support both OD600 and protein assay applications.
Stand-Alone and Software Operation
The instrument can be operated with the 21 CFR part 11 compliant LabX UV/VIS software or stand-alone, allowing full flexibility or a minimized footprint.... Read More | The versatile UV5 benchtop UV/Vis spectrophotometer features translucent liquid, solid, and film analysis. Its reliable performance and flexible accessories and software make it the perfect solution for any lab looking to improve efficiency and accuracy.
Direct Measurement and Methods
The direct The versatile UV5 benchtop UV/Vis spectrophotometer features translucent liquid, solid, and film analysis. Its reliable performance and flexible accessories and software make it the perfect solution for any lab looking to improve efficiency and accuracy.
Direct Measurement and Methods
The direct measurement function yields immediate results. Individual and ready-to-use methods give full setting control, for more precise results.
Efficient Accessories and Automation
Using accessories such as pumps, a cuvette changer or an autosampler, you may simplify your measurements and readily adapt to new applications.
Smart Results Management
LabX™ UV/VIS software supports easy result handling. Automated calculations improve workflow efficiency, cut down on errors, and streamline analyses.... Read More | The Excellence UV7 Spectrophotometer's optical performance fully complies with Pharmacopeia requirements concerning photometric and wavelength accuracy, resolution and stray light. The UV7 comes with four pre-defined direct measurement types and METTLER TOLEDO methods. The method editor allows The Excellence UV7 Spectrophotometer's optical performance fully complies with Pharmacopeia requirements concerning photometric and wavelength accuracy, resolution and stray light. The UV7 comes with four pre-defined direct measurement types and METTLER TOLEDO methods. The method editor allows specific adaptation of the spectroscopic workflow.... Read More |
| Quantity | EA | EA | EA |
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