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Morphologically Directed Raman Spectroscopy Supports Identification of Particles in Mixed Populations
With the introduction of the Morphologi G3-ID system last year, Malvern Instruments is providing researchers with the ability to apply morphologically directed Raman spectroscopy to a range of different sample types. Such advanced particle analysis is proving valuable and highly effective in applications that include inhaled product characterisation and pharmaceutical bioequivalence studies, bioequivalence for nasal sprays being referenced specifically in a talk given by the FDA at this year’s IFPAC conference [January 22-25, 2013 Baltimore, MD, USA]. The use of morphologically targeted Raman spectroscopy has also been described in an independent article, as part of granulation studies, to provide the physical and chemical identities of particles in mixed populations.
By combining automated particle imaging with Raman spectroscopy, the Morphologi G3-ID offers a single platform for the measurement of particle size, shape and chemical identity. The technology involved enables independent characterisation of individual components present within a blend or mixture, while the instrument itself is designed for automation and ease of use. Standard operating procedures control all aspects of the measurement from sample dispersion through to size, shape and chemical analyses, enabling automatic selection, targeting and chemical classification of 1000s of individual particles.
A comprehensive introduction to the Morphologi G3-ID can be downloaded from the Malvern website. MORE INFO. 23
Modular Raman Spectrometer with Small Footprint
Ocean Optics has introduced the Apex 785 Raman Spectrometer, the first in the Elite Series of high-performance spectrometers, light sources and accessories. Apex is a modular, small-footprint spectrometer that rivals bench- top instruments. Apex provides maximum resolution and exceptional sensitivity that combine to create superior performance.
Apex eliminates the compromise typically made to achieve either high sensitivity or maximum resolution. Using a unique optical design and high throughput virtual slit, licensed from Tornado Spectral Systems, the Apex spectrometer eliminates this tradeoff between sensitivity and resolution. The result is a powerful tool for low light applications such as Raman spectroscopy.
Apex’s higher resolution enables better resolved peaks and observation of spectral features not seen previously. Its high sensitivity affords shorter integration times for faster measurements and lower excitation power to minimise sample degradation.
“Since we launched our first miniature spectrometer over 20 years ago, Ocean Optics has been the world leader in modular spectroscopy solutions,” said Richard Pollard, President of Ocean Optics Inc. “The Apex spectrometer and the creation of our new Elite series demonstrate our commitment to innovation necessary to maintain leadership in the industry.”
The launch of the Apex spectrometer represents the perfect partnership of sophisticated, industry-leading technical innovation and the flexible, modular and applications-based approach, pioneered by Ocean Optics. Joining technology with application support enables Ocean Optics customers to better solve problems and find answers to challenging research questions.
MORE INFO. 24
Spectroscopy Company Brings in Throckmorton to Lead Global Engineering
Ocean Optics has appointed Jeff Throckmorton, PhD, Vice President of Engineering to lead the development of its line of end-user and OEM optical sensing products.
With offices in the US, Europe and Asia, Throckmorton will have responsibility for the company’s global engineering resources. His goal is to increase and enhance Ocean Optics current line of spectrometers, chemical sensors, analytical instrumentation, and accessories through both internal engineering and open innovation initiatives.
He and his team will work closely with customers to solve measurement challenges not met by current products. Additionally, Throckmorton will be a member of the Ocean Optics’ board of directors, helping to shape company strategy.
Multi-Reflection ATR Accessory
The Pike Technologies JetStream is a unique ATR accessory that is optimised for analysis of liquids in static or dynamic modes under ambient or variable pressure conditions. The accessory design features a cylindrical ATR crystal encased in a heavy-duty stainless steel body. The crystal’s geometry has been carefully chosen to maximise its performance. The crystal generates 12 reflections along its body with throughput sufficient to perform high sensitivity measurements. JetStream’s compact design employs a pair of transfer optics directing the infrared beam to one end of the crystal. A similar pair of optics directs the beam exiting the accessory to the spectrometer’s detector. The sample enters and exits the measurement chamber via Swagelok®
ports and
completely surrounds the crystal. This assures efficient sampling and very good reproducibly. The JetStream Accessory is available for all brands of FTIR spectrometers.
Pike Technologies, established in 1989, became a primary source for spectroscopy accessories and applications worldwide. Products include attenuated total reflectance (ATR), diffuse reflectance, specular reflectance, integrating spheres, polarisation, IR microscope, beam condensers, remote sensing, and a complete line of transmission sampling accessories. Many of these products are available with optional heating and automation for increased sampling speed and productivity. Pike Technologies, Inc also offers design and consulting services for development of specialised and custom products for a wide range of spectroscopy applications. Pike products are compatible with all major brands of spectrometers.
MORE INFO. 25
Throckmorton comes to Ocean Optics from technology solutions provider Eltron Research & Development Company (Boulder, Colo.), where he served as Vice President of Technology.
He has previously held multiple positions with subsidiaries of Danaher Corporation (Washington, DC) including Vice President Global Innovation for Hach-Lange, Vice President of Research & Development for Hach, and President of Hach Homeland Security Technologies. Earlier in his career held positions with HF Scientific, Inc and BTG Process Control Sensors, Inc.
Throckmorton earned a Bachelor of Science degree in Chemical Engineering from Virginia Tech (Blacksburg, Va.). He also holds Masters in Chemical Engineering and Doctorate in Engineering degrees from University of South Florida (Tampa, Fla.).
MORE INFO. 26
New Optical Emission Spectrometer for Metals Analysis
Thermo Fisher Scientific Inc have introduced the Thermo Scientific ARL iSpark OES spectrometer, an instrument designed to provide precise, accurate and reliable metals analysis. The ARL iSpark spectrometer, designed for high-speed, high-throughput analysis, helps metallurgists achieve higher productivity and quality and deliver savings on operational cost.
“The ARL iSpark offers metallurgists fast analysis, which increases efficiency and reduces costs, especially when working with molten metals,” said Dr Ravi Yellepeddi, Director of Marketing, Thermo Fisher. “Higher accuracy reduces raw materials waste and improves production quality by enabling metallurgists to confirm precise concentrations of elements, down to parts per million.”
Optical emission spectrometry, which analyses the emitted light from spark excitation of a metallic sample, is one of the most reliable and accurate means of characterising the composition of metals and alloys. ARL iSpark integrates the PMT and CCD detection technologies to provide high performance analysis while maintaining versatility to cover a wide range of elements. ARL iSpark spectrometer is factory-calibrated to the user’s specifications, allowing it to reliably quantify the specific elements of interest to each facility. ARL iSpark series is designed to provide optimum solutions to primary metal producers, medium to high level metal processors and foundries, recyclers and central laboratories as well as contract/analytical service labs. The ARL iSpark OES spectrometer also includes a simplified, operator-level user interface, designed to allow non-scientists to operate the device while more advanced features are available for laboratory and QC/QA managers.
MORE INFO. 27
INTERNATIONAL LABMATE - MARCH 2013
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