Atomic Spectroscopy Mass Calibration in ICP-MS This technical paper describes the key role of mass calibration in ICP-MS for optimizing sensitivity and stability and minimizing susceptibility to inferences. The Analysis of Air Filters and Compliance with Instrument Sensitivity Requirements of U.S. EPA Method IO-3.3 Analysis of air filters demonstrated by EDXRF indirect excitation with secondary targets and polarization in full Cartesian geometry. Sample Preparation for XRF Analysis This article describes the important aspects of sample preparation for XRF and how utilizing the best sample preparation technique can help attain reliable XRF results. A Robust, High Performance, Fully Demountable ICP Torch High-precision engineering provides lower running costs, chemical inertness, and configurable injector geometry, without compromising usability, performance, or durability. Molecular Spectroscopy Quantification of Tablets Containing Multiple APIs Using Transmission Raman Spectroscopy The ability to predict multiple constituents of a final dosage form in one fast, nondestructive measurement can reduce analysis time and cost significantly. Cleaning Up IPA Production with Stage-by-Stage MIR Analysis Mid-IR spectroscopy with an instrument such as the Ocean MZ5 can help to streamline the production of isopropyl alcohol and other complex solvents.