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.

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CompanyDeNovix Inc.DeNovix Inc.DeNovix Inc.
ItemQFX FluorometerDS-11 Series Spectrophotometer / FluorometerDS-C Cuvette Spectrophotometer
Citations
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(2)
Reviews
Catalog NumberQFXDS-11DS-C Cuvette
Price
TypeFluorometerUV-Vis Spectrometer, FluorometerSingle beam, UV/Vis
Wavelength RangeInquire190-840 nm190-840 nm
Wavelength AccuracyInquire0.5 nm (UV-Vis)Inquire
Scanning SpeedInquire2 secondsInquire
Light SourceUV, Blue, Green and Red LEDsPulsed Xenon flash lamp
UV, Blue, Green, Red LEDs
Pulsed Xenon flash lamp
ResolutionInquire1.5 nm (FWHM at Hg 253.7 nm)1.5 nm (FWHM at Hg 253.7 nm)
DescriptionThe QFX is a powerful solution for all fluorometric applications where enhanced specificity or sensitivity are needed. Quantify nucleic acids and proteins using four fluorescent channels with a choice of common assays built into measurement apps, or easily create custom apps for the ultimate in ... Read MoreTwice winner of Reviewer's Choice Product of the Year: The DeNovix DS-11 Spectrophotometer / Fluorometer. The DS-11 Series combines fluorescence, microvolume absorbance and optional cuvette absorbance methods in a single, compact instrument. Rapidly quantify nucleic acid and protein samples over the... Read MoreThe DeNovix DS-C is a simple-to-use UV-Vis cuvette spectrophotometer with outstanding dynamic range, sensitivity and flexibility. Rapidly quantify biomolecules using any cuvette with an 8.5 mm z-height. The instrument includes preinstalled EasyApps for nucleic acids, proteins, colorimetrics assays, ... Read More
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