Product category:
Liquid Analysis: Spectroscopy, Colour
News Release from: Thermo Fisher Scientific (Molecular Spectroscopy) | Subject: Praying Mantis sampling accessory
Edited by the Processingtalk Editorial
Team on 28 September 2006
Solid samples characterisation using
reflectance
A new accessory provides researchers in the Materials Science market with the ability to characterise solid samples, such as minute amounts of a powder, by UV-Visible diffuse reflectance spectroscopy
Thermo Electron, world leader in analytical instrumentation, introduces the Praying Mantis diffuse reflectance accessory designed for use with the Thermo Evolution 300 and Evolution 600 UV-Visible spectrophotometers The Praying Mantis sampling accessory provides researchers in the Materials Science market with the ability to characterise solid samples, such as minute amounts of a powder, by UV-Visible diffuse reflectance spectroscopy
This article was originally published on Processingtalk on 26 Sep 2008 at 8.00am (UK)
Related stories
Thermo Fisher unveils spectrophotometer web tool
Thermo Fisher Scientific has released an enhanced version of its UV-visible spectrophotometer web tool for effective selection of UV-vis systems.
Helios Zeta and Omega UV-Vis Spectrophotometers
Thermo Fisher Scientific introduces the new Helios Zeta double-beam and Helios Omega single-beam UV-Visible Spectrophotometers with USB storage and printing capabilities
Traditionally, diffuse reflectance accessories require large volumes of samples approximately 12 mm in diameter and several millimeters thick.
However, the Praying Mantis accessory has the ability to perform a diffuse reflectance measurement on samples as small as three millimeters in diameter and one millimeter deep.
This near 90-fold reduction in sample requirement enables researchers developing new compounds in small sample quantities to perform precise analyses.
Further reading
SOLA flare analyser to monitor flare feed gas
Based on the SOLA II platform, the SOLA Flare is a total sulphur analyser system specifically designed for online measurement and monitoring of flare feed gas, to improve refinery efficiency
Spectrometer for Mobile Environmental Monitoring
Thermo Fisher Scientific has completed a custom installation of its TSQ Quantum triple quadrupole mass spectrometer in a mobile laboratory operating on a bus, for Mobile Environmental Monitoring
This accessory is ideal for researchers performing material science analysis in academic research, national and government research laboratories, as well as in inorganic chemistry and physics laboratories.
Diffuse reflectance accessories which use integrating spheres rely on sphere coatings, limiting the wavelength range in the ultraviolet region of the spectrum.
The Praying Mantis accessory incorporates overcoated mirrors enabling the full wavelength range of the instrument to be used.
Additionally, optional reaction chambers are available which extend the capabilities of the accessory, greatly expanding the flexibility of the system by allowing the researcher to study the characteristics of their samples at a wide variety of temperatures and pressures.
Temperatures can be controlled from -150C to 600C, and variable vacuum control systems are available.
Furthermore, the Praying Mantis includes the ability to use the accessory with the spectrophotometer sample compartment open, for convenience when mounting and removing samples.
Also, the sample chamber can be purged with an inert gas such as dry nitrogen, allowing the diffuse reflectance characterisation of samples that may be oxygen-sensitive or moisture-sensitive.
The Praying Mantis is available for the Evolution 300 spectrophotometer that has an upper wavelength range of 1100 nanometers; therefore, researchers can achieve the extended wavelength coverage in the near-IR (NIR) region from 800 to 1100nm without having to purchase a more expensive UV-Visible-NIR instrument.
• Thermo Fisher Scientific (Molecular Spectroscopy): contact details and other news
• Email this article to a colleague
• Register for the free Processingtalk email newsletter
• Processingtalk Home Page
Search the Pro-Talk network of sites
