Spectrophotometer

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.

CompanyHach CompanyHach CompanyHach CompanyHach Company
ItemHach DR3900 Laboratory VIS SpectrophotometerHach DR1900 Portable SpectrophotometerHach DR4900 Laboratory SpectrophotometerHach DR6000 UV-VIS Spectrophotometer
Price
TypeVIS SpectrophotometerPortable SpectrophotometerVIS SpectrophotometerUV-VIS Spectrophotometer
Wavelength Range320 - 1100 nm340 - 800 nm320 - 1100 nm190 - 1100 nm
Wavelength Accuracy± 1.5 nm (wavelength range 340 - 900 nm)± 2 nm±1.5 nm (wavelength range 320 - 1100 nm)± 1 nm
Scanning Speed> 8 nm/s (in steps of 1 nm)Inquire= 8 nm/s (in increments of 1 nm)900 nm/min (in 1 nm steps)
Spectral Bandwidth5 nmInquire5 nm2 nm
Optical SystemReference beam, spectralReference beam, spectralReference beam, spectralReference beam, spectral
Light SourceGas-filled Tungsten (visible)Xenon FlashHalogen lampTungsten (visible range), deuterium (UV range)
Resolution1 nmInquire1 nm0.1 nm
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