Magnesium, calcium, or zinc stearates are commonly used in pharmaceutical drug manufacturing. While these metal stearates exhibit similar chemical properties, they are not necessarily interchangeable in manufacturing processes. It is critical therefore that they are identified and differentiated at receipt in the warehouse to avoid process disruptions. Accurately differentiating stearate analogs at receipt by Raman spectroscopy has historically been challenging. Given the similarities of the spectra of the compounds, sophisticated chemometric software is often needed to build stearate models that are then used to identify them. This study shows that the Agilent Vaya handheld Raman spectrometer with Spatially Offset Raman Spectroscopy (SORS) can identify metal stearates in their original primary packaging, without the need for complex chemometric software packages. The handheld Vaya Raman enables the selective verification of stearates using a two-criteria decision algorithm combined with the "Analogous Sample" software feature.
Practical Autodilution for ICP-MS and ICP-OES
January 20th 2025Gain insights into improving efficiency and accuracy in elemental analysis through automated dilution technology. Learn about the key capabilities of the Agilent ADS 2 system and its seamless integration with ICP-MS and ICP-OES workflows.
UV-Vis Spectroscopy: Exporting Your Measurement Out of the Instrument
January 20th 2025Optical fibers in ultraviolet-visible (UV-Vis) spectroscopy can enable measurements outside the traditional sample compartment. This paper details the components needed for fiber optic systems, such as couplers and probes, and reviews the performance of Agilent's Cary series instruments. It is crucial to choose the right fiber optic setup for a specific lab’s needs to ensure accurate and efficient measurements.