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 | Agilent Technologies | Agilent Technologies |
| Item | Cary 6000i UV-Vis-NIR Spectrophotometer | Cary 3500 Flexible UV-Vis Spectrophotometer |
| Catalog Number | 10079400 | Cary 3500 Flexible |
| Price | | |
| Type | UV-VIS-NIR | UV-Vis double beam spectrophotometer |
| Wavelength Range | 175 to 1800 nm | 190 to 1100 nm |
| Wavelength Accuracy | UV/vis +/- 0.1, NIR +/- 0.2 | ± 0.2 nm |
| Scanning Speed | UV-Vis 2,000 nm/min; NIR 8,000 nm/min | UV-Vis 150,000 nm/min |
| Spectral Bandwidth | UV-Vis 0.01 - 5.00 nm; NIR 0.04 - 20 nm | 0.1 to 5 nm |
| Optical System | Double out-of-plane Littrow monochromator | Double out-of-plane Littrow monochromator |
| Light Source | Mercury lamp | Xenon flash lamp |
| Resolution | UV/Vis less than 0.05; NIR less than 0.1 | 0.1 nm limiting resolution |
| Description | The Cary 6000i UV-Vis-NIR spectrophotometer has been tailored for unmatched photometric performance in the short-wave infrared (SWIR) 800–1800 nm range as well as the UV-visible 175 to 800 nm. Using narrow-band InGaAs detection and a 600 lines-per-mm diffaction grating for improved SWIR sensivity, The Cary 6000i UV-Vis-NIR spectrophotometer has been tailored for unmatched photometric performance in the short-wave infrared (SWIR) 800–1800 nm range as well as the UV-visible 175 to 800 nm. Using narrow-band InGaAs detection and a 600 lines-per-mm diffaction grating for improved SWIR sensivity, the Cary 6000i is the ultimate tool for materials characterization spectroscopy.
Using Cary WinUV software with the Cary 6000i makes it easy to perform powerful analysis and control optional accessories. The large sample compartment can be expanded to hold large accessories and integrating spheres for spectral and diffuse reflectance. The LockDown mechanism makes it possible to quickly change and position accessories for reproducible results.
Features
- Measure beyond 8.0 absorbance units with reference beam attenuation
- Measure 175 to 1800 nm using a narrow-band InGaAs detector and 600 l/mm NIR diffraction gratings for unmatched sensivity in the short-wave infrared
- WinUV software—modular software with power analysis and enhanced transfer and report export capabilities
- Versatile set of accessories for materials research including spectral and diffuse reflectance
- Variable slit widths (down to 0.01 nm) for optimum control over data resolution
- Large sample compartment with LockDown mechanism for quick changes and positioning for reproducible results
- Maximum light throughput using Schwarzchild coupling optics for higher accuracy at low transmission levels
- Minimal noise and stray light using a floating aluminum casting and double out-of-plane Littrow monochromator
- Extended dynamic range by attenuating the reference beam to balance double beam signal levels.
- Nitrogen purging—separate purging in the sample and monochromator compartments to reduce oxygen and water vapor in the ultra-violet.
... Read More | The Cary 3500 Flexible UV-Vis is a double-beam spectrophotometer with superior photometric performance—for challenging measurements with minimal sample preparation—that can be deployed in regulated environments. The system offers a uniquely large sample compartment with a small footprint for The Cary 3500 Flexible UV-Vis is a double-beam spectrophotometer with superior photometric performance—for challenging measurements with minimal sample preparation—that can be deployed in regulated environments. The system offers a uniquely large sample compartment with a small footprint for analyzing liquid samples that require long-length cuvettes, as well as characterizing solid samples. A xenon flash lamp—complete with a 10-year replacement warranty (for Cary 3500 instruments purchased from Agilent or participating partners)—eliminates the daily warm-up time and drastically reduces the frequency and cost of lamp replacement.
The Cary 3500 comes complete with Cary UV Workstation software—a next-generation analytical platform with streamlined methods for wavelength reads, scanning, concentration, kinetics, and temperature measurements. When configured with Agilent OpenLab data management software, Cary UV Workstation data is managed, protected, and stored in a local or central secure database.
Features
- Measure liquid samples via unique variable pathlength rectangular and cylindrical cell holders, which enable quick and reproducible pathlength changes up to 10 cm. This design is toolless and eliminates time-consuming alignment procedures.
- Handle a wide variety of solid samples and thin films with a large sample compartment that accommodates most sample sizes while minimizing its footprint on the lab bench.
- Ensure you never miss a data point—even in rapid reaction kinetics measurements—with advanced xenon flash lamp technology achieving a data collection rate of 250 points per second.
- Achieve research-grade photometric performance, stability, and high linear dynamic range with minimal sample preparation.
- Reduce data processing time and calculation errors with more than 50 built-in and customized calculations that can be saved and applied automatically to any method used routinely.
- Be up and running in minutes by following the intuitive video tutorials in Cary UV Workstation’s Help and Learning Center.
- Meet data integrity standards—provides the technical controls to acquire securely, process, report, and store data in laboratories that must follow the compliance guidelines of FDA 21 CFR Part 11, EU Annex 11, GAMP5, as well as ISO/IEC 17025 and EPA’s 40 CFR Part 160.
- Store and manage your Cary 3500 Flexible UV-Vis spectrophotometer data in a local secured storage on the workstation PC, or in a central storage location.
- Deploy the OpenLab software suite and get optional secure database storage for electronic records, complete user administration and access privileges, software licensing, and security settings—e-signature workflow and enhanced audit trail review capabilities.
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| Quantity | EA | EA |
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