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.
Find, compare, and request a quote for spectrophotometers across leading suppliers at Labcompare; including access to product citations, related published figures, and first-hand reviews from our scientific community.
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| Company | Thermo Fisher Scientific | Thermo Fisher Scientific | Thermo Fisher Scientific | Thermo Fisher Scientific | Thermo Fisher Scientific |
| Item | Evolution™ Peltier Thermostatting Accessories | GENESYS™ 40 Vis Spectrophotometer | NanoDrop™ Eight Spectrophotometer | NanoDrop™ Lite Plus Spectrophotometer | Nicolet™ Summit™ X FTIR Spectrometer |
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| Catalog Number | 699-131100 | 840-297000 | NDE-GL / NDEIGHT-LAPTOP / NDEIGHT-E1PIP / NDEIGHT-PIP | NDLPLUSGL / NDPLUSPRGL | IQLAADGAAGFAQXMBNM |
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| Type | Single Cell Peltier System | Visible | UV VIS Spectrophotometer | UV-Vis | Inquire |
| Wavelength Range | Inquire | 325 nm to 1100 nm | 190 to 850 nm | 230 nm, 260 nm, 280 nm | 8000 to 350 cm-1 |
| Wavelength Accuracy | Inquire | ± 0.5 nm | ± 1 nm | ± 1 nm | Inquire |
| Scanning Speed | Inquire | Automatic – up to 1800 nm/min | 8 samples in < 20 sec | ≤ 5 seconds | Inquire |
| Spectral Bandwidth | Inquire | 5 nm | < 1.8 nm | Inquire | Inquire |
| Optical System | Inquire | Dual Beam | 2048-element CMOS linear image sensor | 2048-element CMOS Linear Image Sensor | Inquire |
| Light Source | Inquire | Tungsten-Halogen (>1000 hours) | Xenon flash lamp | Light emitting diodes | Inquire |
| Resolution | Inquire | Inquire | ≤ 1.8 nm (FWHM at Hg 254 nm) | ≤ 1.8 nm (FWHM at Hg 254 nm) | Better than 0.6 cm-1 |
| Description | Temperature control and sample stirring are important for many UV-Visible analysis methods. Peltier thermostatted accessories outperform traditional heater/chiller units to deliver superior performance with compact integrated design, simple set-up, and fast, precise temperature control. Thermo Temperature control and sample stirring are important for many UV-Visible analysis methods. Peltier thermostatted accessories outperform traditional heater/chiller units to deliver superior performance with compact integrated design, simple set-up, and fast, precise temperature control. Thermo Scientific™ Peltier Accessories for the Thermo Scientific™ Evolution™ 200 Series and Evolution 350 UV-Vis Spectrophotometers provide thermostatting and ramping with precise temperature control between 0 °C and 110 °C.
Kit consists of:
- PCCU1 Peltier Control and Cooling Unit
- Peltier Thermostatted Single Cell Holder sample compartment insert
- All necessary tubing, cables and connectors
... Read More | Perform routine measurements for quality control or teaching in the chemistry classroom with the rugged Thermo Scientific™ GENESYS 40 Vis Spectrophotometer. Offered in a single cell configuration, this insrtrument is designed with a sloping surface to shed spills and a washable sampling compartmentPerform routine measurements for quality control or teaching in the chemistry classroom with the rugged Thermo Scientific™ GENESYS 40 Vis Spectrophotometer. Offered in a single cell configuration, this insrtrument is designed with a sloping surface to shed spills and a washable sampling compartment for easy clean up. A 7-inch touchscreen interface, local control software (no PC needed) and Wi-Fi-ready networking make the GENESYS 40 Vis Spectrophotometer the ideal choice for daily sampling purposes.... Read More | Increase the chances of success in your analyses with efficient analysis of your sample quantity and quality using the Thermo Scientific™ NanoDrop™ Eight UV-Vis spectrophotometer. Ideal for pharma/biotech and academic researchers measuring larger number of nucleic acid and protein samples. NanoDrop Increase the chances of success in your analyses with efficient analysis of your sample quantity and quality using the Thermo Scientific™ NanoDrop™ Eight UV-Vis spectrophotometer. Ideal for pharma/biotech and academic researchers measuring larger number of nucleic acid and protein samples. NanoDrop Eight measures 8 samples at a time in less than 20 seconds. Software identifies sample contaminants and reports true sample concentration with the built-in Thermo Scientific™ Acclaro™ Sample Intelligence technology. Optional software allows you to more easily comply with 21 CFR Part 11 regulation.... Read More | The Thermo Scientific NanoDrop Lite Plus Spectrophotometer is a compact, personal UV-Vis microvolume spectrophotometer that complements the full-featured NanoDrop One/OneC and NanoDrop Eight instruments. The NanoDrop Lite Plus is an affordable choice for fast, easy measurements, designed to deliver The Thermo Scientific NanoDrop Lite Plus Spectrophotometer is a compact, personal UV-Vis microvolume spectrophotometer that complements the full-featured NanoDrop One/OneC and NanoDrop Eight instruments. The NanoDrop Lite Plus is an affordable choice for fast, easy measurements, designed to deliver where it counts: rapid, accurate and reproducible microvolume measurements without the need for dilutions. It uses the same sample retention system that has become a hallmark of NanoDrop instruments; the sample is held in place by surface tension only.
Features - Measures purified DNA, RNA, and protein concentration
up to 30 Abs
- Calculates critical A260/A280 and A260/A230 purity ratios
- Employs the unique NanoDrop microvolume sampling technology
- Delivers the accuracy and reproducibility expected from NanoDrop instruments
- Uses built-in controls and software–no computer required
- Offers an optional printer for cryogenic labels
... Read More | Inquire |
| Quantity | EA | EA | EA | EA | Inquire |
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