Deep Ultraviolet and VUV Absorbance

Deep ultraviolet absorbance spectroscopy of liquids and gases

Absorbance is among the most widely used spectroscopic techniques for studying liquids and gases. It is simple, accurate, and usually easy to do. An absorbance spectrum can be used as a qualitative tool to “fingerprint” substances, or as a quantitative tool to measure concentration, for example. We’ve taken the sensitivity and selectivity of absorbance to the next level with deep UV tools free from interference.

Absorbance measurements take many forms. They work well for gases and liquids, and have found their way into many applications. Samples do not need to fit 1 cm path length cuvettes! Flow cells, dip probes, multi-pass cells, and more, allow sampling to be customized. For example, McPherson has special flow cells for gas and liquid analysis at very short wavelengths. Our absorbance instruments work from 115 or 120 nanometers in the deep UV and up to the Visible light region.

acetone absorbance measured in the deep UV spectroscopy system layout for deep UV and VUV spectral absorbance measurement

McPherson's spectroscopy systems provide flexibility. Users can determine the wavelength range and resolution requirement and then move easily to sampling optics for measurements in the lab or field. With our diverse spectrometers, light sources, and accessories, we can help you to create an optimized system.

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