Spectroscopy Application Note Alert Having trouble viewing this email? Click here Atomic Spectroscopy 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. Combating the Fentanyl Epidemic Using Handheld 1064 nm Raman This application note describes the use of the Rigaku ResQ CQL 1064 nm handheld Raman analyzer to provide both bulk and trace analysis of fentanyl and other narcotics. Multi-Element Water Analysis by TQ-ICP-MS This application note demonstrates the routine automated multi-element analysis of environmental samples using triple quadrupole ICP-MS.   Molecular Spectroscopy 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. Correlative Raman Imaging of Polymeric Materials This study shows Raman imaging, atomic force microscopy and scanning near-field optical microscopy characterizing and depth-profiling polymer blends and layers. ATR of a Photopolymerization Reaction The photopolymerization curing process of a UV-curable photopolymer was investigated using time-resolved Attenuated Total Reflection spectroscopy. Reliable Identification of Counterfeit Spirits Mid-IR spectroscopy can help identify counterfeit liquors. We examine the feasibility of the Ocean MZ5 spectrometer to detect small amounts of denatured alcohol in liquors. Using Raman Spectroscopy to Tackle Polymorphism, an Industry Problem This note looks at incidences of polymorphism in drug development including advantages and challenges.   Mass Spectrometry A Case of Mercury Contamination: Minamata A historical but pertinent case of effects of industrial pollution on the human population in Minimata, Japan is reviewed.   General TOC Determination in Raw and Drinking Water Reliable TOC analysis using the NPOC method with TIC control, high throughput by parallel purge and analysis, comparing catalytic combustion with UV-chemical oxidation.