Home > Biological > Application > Detection > Ultraviolet-Visible (UV-Vis)

Ultraviolet-visible (UV-Vis) spectroscopy is a technique that identifies chemicals based on the interaction of molecules with electromagnetic radiation in the ultraviolet-visible region (10,000-33,333cm-1 or 300-1000 nm). Molecular absorbances of UV-Vis light cause electronic transitions within molecules. These transitions typically occur with the presence of a transition metal ion, or a conjugated organic molecule. Point analysis (“bench top”) systems are used for analyzing liquid phase materials, although a few systems are also capable of analyzing gases and solids. UV-Vis instrumentation has been scaled down to hand-held size for specific colorimetric applications, but most research-grade instruments are of larger size, and are often combined with NIR instrumentation. There are UV-Vis reference databases, but there is much less specificity in a UV-Vis spectrum compared to MIR data, making it a secondary verification technique with unknown chemicals.

Manufacturer
Universal Detection Technology (1)
Veritide (1)
Transportability
Handheld (1)
Benchtop/Fixed (1)
Availability
Discontinued (2)
Unit Cost
$50,000 - $100,000 (1)
N/A (1)
Sample Introduction
Solid (1)
Vapor/Gas (1)
Sensitivity / Detection Limit
Ci (1)

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Product Type

Instrument (2)

TRL

8 (1)
9 (1)

Weight

<5 Lbs. (1)
<30 Lbs. (1)

Power Requirement

Lithium Battery (1)
AC/DC Line Power (1)

Training Required

<1 week (1)

Response Time

<15 minutes (2)

Supporting Data Available

None (2)

Shelf Life

>5 years (1)

Consumables Required

None (1)
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