Organic solvents are widely used in the manufacture of active pharmaceutical ingredients (API), however, their presence in the final product needs to be carefully controlled and as low as is reasonably possible.
A number of processes are used to remove solvents, with drying usually being the last step used. Understanding and controlling the drying step is critical to the quality of the final product.
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The Use of SIFT-MS to Determine Drying End Points for In-Line Process Monitoring