June 2011


June 2011	Subscribe	Go to Application Notebook

	More Raman Analyses Less Fluorescence Interference *Duyen Nguyen and Eric Wu, Enwave Optronics, Inc.* Continuing the success of the ProRaman Series, Enwave Optronics recently announced the implementation of the ProRaman-L9 Series instruments with excitation wavelength around 900 nm for analysis of materials prone to fluorescence interference.
	FT-IR Diffuse Reflectance Sampling with an Environmental Chamber for In Situ Reaction Monitoring *J.L. Briggs, PIKE Technologies* FT-IR diffuse reflectance sampling coupled with an environmental temperature chamber offers a convenient method to study sample degradation, to evaluate catalyst efficiency, and to determine reaction pathways as a function of temperature and pressure. The aim of this application note is to present data from a model system to illustrate the FT-IR technique of diffuse reflectance used in combination with an environmental temperature chamber.
	UV-Vis-NIR Analysis/Quantitation of Mineral Water Samples *Shimadzu* This application note investigates mineral water content differences using absorption spectra, as well as the effectiveness of chemometrics quantitation, in which applied multiple linear regression was used to determine the mixture ratios of several commercial mineral water samples.
	Advantages of TEC Spectrometers for Raman and Fluorescence *Robert Chimenti, B&W Tek, Inc.* We demonstrate the benefits of TE cooled spectrometers by comparing B&W Tek’s Glacier™ X to a noncooled spectrometer, configured for fluorescence and Raman spectroscopy.
	Confocal Raman & AFM Imaging: Paper, Coatings, and Residues *Harald Fischer, WITec GmbH* This application note presents confocal Raman and AFM measurements from several stages of the paper manufacturing process along with specialty paper characterizations and residue, coating, printing, and writing analysis.
	Measurements of The Photocatalytic Properties of Colorimetric Species Using UV-Vis with Fiber Optics *D.J. Fyfe and X.D. Wang, Agilent Technologies* This note discusses the measurement of small samples of methylene blue in situ during exposure to high-intensity UV irradiation. Methylene blue is combined with other compounds used in applications such as cosmetics, sunscreen and environmental remediation in contaminated air and water.
	Water-Quality Measurements with the HORIBA Jobin Yvon AquaLog *Adam M. Gilmore, HORIBA Scientific* HORIBA Scientific's analytical instrumentation offers broad-ranging support for all research.
	Automated Comparison of Circular Dichroism Spectra of Proteins *Lindsay Cole, Applied Photophysics Limited* Automated sample handling and data processing were used to compare circular dichroism spectra of eight mammalian serum albumins. Very slight differences were identified using statistical analysis and two normalisation techniques.
	Magneto-PL Unveils Photoluminescence in Si Nanocrystals *Gerald Cairns, Andor Technology* The emitting properties of nano-structured silicon (Si) are investigated by spectroscopic magneto-photoluminescence (magneto-PL), in the quest for all-silicon-based, more compact, and further integrate able photonic devices.
	Determining Percent Crystallinity in Pharmaceutical Materials *Detlef Beckers, Ingeborg Fix, and K.-J. Steffens, PANalytical* Investigation of the existence and amount of amorphous material within crystalline matrix and vice versa can influence processing and bioavailability behavior. Comparison of XRD, NIRS, and DSC data is made.

Analysis of Flue Gas Desulfurization Wastewaters by ICP-MS
Richard Burrows and Steve Wilbur, Agilent Technologies
A newly developed SOP that meets all US EPA requirements for the analysis of highly contaminated and extremely high-matrix flue gas desulfurization wastewater samples is presented in this note.

A New Data Dependent Acquisition Alogrithm (Fast DDA)
Chris Hughes and Jim Langridge, Waters Corporation
The analysis described demonstrates a new improved data dependent acquisition algorithm (Fast DDA) for the rapid characterization of complex protein digest samples. This method is used to characterize complex protein digest samples using a new data dependent acquisition algorithm.

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