Spectroscopy Application Note Alert Having trouble viewing this email? Click here   Atomic Spectroscopy   HV Calibration for Small X-ray Sources Spectroscopically identical x-ray sources allow OEMs to use a standard calibration and allows direct switching of x-ray sources in instruments without additional effort.   Performance of the DST Acid Purification Systems Acid purification systems provide a continuous supply of high-purity acid for metals analysis. We present user data for both semiconductor and geochemical applications.   Analysis of Nuclear Power Station Colling Water Filters Analysis of copper and iron on Millipore and cation water filters by energy dispersive X-ray fluorescence with the Rigaku NEX DE EDXRF spectrometer.   A Simple, Low-Cost Approach to Improving ICP Productivity The Niagara Rapid Rinse is the simplest, lowest-cost method of improving throughput for ICP-MS applications. Time saved is typically 30%.   TOC Determination in Raw and Drinking Water How to acquire Reproducible and reliable determination of total organic carbon (TOC) content in drinking water providing a high inorganic–carbon matrix   Molecular Spectroscopy   Characterizing Graphene with Cost-Effective Raman Systems This application note explores the characterization of graphene with an affordable modular Raman spectrometer system using the StellarNet HYPER-Nova.   Current Trends in Polymer Raman Spectroscopy: Quality, Efficiency, and Safety Raman-based polymer process monitoring enables rapid optimization of polymerization conditions, improves process efficiency, and ensures optimal final form.   ParticleScout for Automated Confocal Raman Imaging Analysis of Microparticles This overview of advanced microparticle analysis shows how particles can be found, classified, and then identified automatically using confocal Raman microscopy.   Implantable SERS Biosensors Can SERS outshine fluorescence as the technique of choice for biosensors? Explore a promising new sensor design for pH, and the impact of hydrogel matrix on performance.   Analysis of Protein Standard Solutions by ATR-IR Multiple reflection attenuated total reflection FT-IR accessory allows for protein analysis of strongly IR-absorbing samples, such as aqueous solutions.   Quality Control Testing for Catheters We describe how a manufacturer of antimicrobial-impregnated catheters has traded HPLC for reflectance spectroscopy to streamline its quality control processes.   Cannabis CBD Oil FTIR Analysis This application note explores the analysis of legal cannabidiol using FTIR transmission spectroscopy.   Mass Spectrometry   Are there official methods for food and beverage product origin, authenticity and label claims? Standardized methods (or official international methods) exist for stable isotope analysis of food and beverage samples and are aimed at protecting product origin, authenticity and label claims.