Sampling Devices for In-line near Infrared Spectroscopy Monitoring of Powder...

Presented by

Anders Sparén Associate Principal Scientist at AstraZeneca and Ed Gooding, MicroNIR Photonic Applications Specialist at VIAVI

About this talk

Sampling Devices for In-line near Infrared Spectroscopy Monitoring of Powder Blend Homogeneity in Continuous Manufacturing In continuous direct compression of pharmaceutical formulations, it is essential to assess the homogeneity of powder blends. This could preferably be done in situ, using fast spectroscopic techniques. In this study, near-infrared spectroscopy was used to study powder blend homogeneity at two positions in the continuous manufacturing process; after the first blender and in the tablet press feed-frame. The focus of the study was on sample presentation at the two positions, and several sampling devices were tested in a laboratory setting using a model formulation, aiming at improving the quality of the NIR measurements. The results for the sampling devices tested are compared and the future implementation in the continuous manufacturing equipment is discussed. Followed by Powder Blend Homogeneity Monitoring with the Viavi MicroNIR PAT-W The MicroNIR PAT-W wireless NIR spectrometer is used in monitoring blend uniformity in pharmaceutical manufacturing. The PAT-W is a rugged, IP65/67 rated instrument with no moving parts. The PAT-W, with >8 hours battery life, WiFi communication and onboard gravity sensor is well suited for use on tumble blenders in regulated facilities. Viavi’s Linear Variable Filter technology, optical fiber-free design and dual onboard tungsten lamps ensure excellent stability, long lifetime and minimal instrument-to-instrument variability. Viavi MicroNIR Pro software provides data acquisition and chemometric model building, and assures compliance with Title 21 CFR Part 11, USP chapter 1119 and EP chapter 2.2.40. OPC communication and control are also available for use in process environments.

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