For almost a century, ultraviolet (UV) radiation has been used in hospital and industrial settings for the decontamination of surfaces, air, and water. UV spectrum can be divided into UVA (315–400 nm), UVB (280–315 nm), and UVC (100–280 nm), whereas the latter exhibits the strongest antimicrobial properties due to its absorption by

Samples that are in a liquid or solution state are placed in cells constructed with materials that are transparent to UV and/or Visible light. Common cuvette materials are quartz, glass, and plastic (Figure 7.1.5.6 ). Glass and plastic are useful for samples that require Vis transparency, although glass is not transparent to UV light below ~380 nm.

The sample compartment provides a light-tight environment that limits stray radiation. Samples normally are in a liquid or solution state, and are placed in cells constructed with UV/Vis transparent materials, such as quartz, glass, and plastic (Figure 10.3.6 ).

^{Does quartz absorb light? Types. Historically, reusable quartz cuvettes were required for measurements in the ultraviolet range, because glass and most plastics absorb ultraviolet light, creating interference. Glass, plastic and quartz cuvettes are all suitable for measurements made at longer wavelengths, such as in the visible light range.} The fact is, lots of pure plastics simply cannot absorb UV radiation, putting your project and its components at severe risk. You can, of course, avoid UV degradation in plastics. Blockers, stabilizers or absorbers can be used to great effect, while titanium dioxide may also be beneficial. TdU2WU.

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does plastic absorb uv light