February 2013

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February 2013	Subscribe	Go to Application Notebook	PRINT SUBSCRIBE	DIGITAL SUBSCRIBE

	EDXRF App Note: Trace Elements in Aqueous Solution *Scott Fess, Rigaku Corporation* Application note #1011 describes quantitative analysis of trace amounts of 12 elements using the benchtop Rigaku NEX CG spectrometer in conjunction with the patented UltraCarry^® sample preparation technique.
	Sample Preparation for Arsenic in Rice *Peter Jackson, Retsch, Inc.* Preparing samples for arsenic analysis is an important and crucial step to ensure the accuracy and viability of the results, especially considering the health concerns associated with the arsenic levels in food

	Operation Gumball: The Sweet Science of Spectroscopy *Rob Morris and Yvette Mattley, PhD, Ocean Optics* An in-line gumball sorter created as a trade show display demonstrates a remarkable range of spectroscopy techniques in determining sample characteristics such as chemical composition, color, and reflectivity.
	Reverse Engineering of Materials & Polymers Using Infrared & Raman Spectroscopy *Thomas J. Tague, Jr., PhD, Bruker Optics* Product development in the industrial world can be a long and expensive process. In a competitive market, the window of opportunity for significant revenue can close before a new competitive product could even exit the development cycle. The obvious solution to keeping up in a competitive market is to acquire the product in question, disassemble it, and analyze it. This reverse engineering process can greatly expedite the immediate introduction of competitive products in the marketplace.
	Handheld 1064 nm Raman for Pharmaceutical Excipients Identification *Elizabeth Yarbrough and Stuart Preston, Rigaku Raman Technologies* This application note discusses the capabilities of a handheld 1064 nm Raman instrument in overcoming fluorescence issues commonly encountered using 785 nm excitation. Five common excipients are tested and results are compared.
	Analysis of Biocrystalline Materials by UV-visible Absorbance Microspectroscopy *Dr. Paul Martin, CRAIC Technologies, Inc.* UV-visible range microspectroscopy is an important technique for analysis of individual protein crystals. Currently, the protein crystals are used for structural biology and drug design, controlled drug delivery, and bioseparations. As such, UV microspectroscopy is used for both the study of individual crystals optical properties as well as for quality control of crystals as they are grown.
	Increase Accuracy of FT-IR Analysis *Parker Hannifin Corp.* This study demonstrates the inconsistency in background levels of water and CO₂ for an unpurged, sealed, and desiccated FT-IR spectrometer compared to a sealed and desiccated FT-IR spectrometer with the sample compartment purged. The purge enhances instrument reliability by reducing the need for maintenance and increases the accuracy of analysis by eliminating inconsistencies in background levels of CO₂ and water.