Development of an automated and High throughput UHPLC/MS based workflow for cleaning verification of potent compounds in the pharmaceutical manufacturing environment.

Cleaning verification (CV) is a critical step in the pharmaceutical manufacturing process to eliminate or reduce unacceptable contamination of a product as a result of insufficiently cleaned equipment surfaces. The main concern is cross contamination with active pharmaceutical ingredients (APIs) from previous runs that may impact patient safety. Current conventional approaches involve rather tedious sample preparation and analytical methods with relative lengthy analysis time. Potent APIs possessing low acceptable daily intake (ADI) values require analytical methods for CV with very low detection limits to confirm that these APIs are below their acceptance limits prior to the next manufacturing process. In this work, a novel end to end CV workflow was developed, which includes the automated sample and calibration solution preparation as well as high throughput analysis by ultra-high-performance liquid chromatography (UHPLC) coupled with single quadrupole mass spectrometry in multiple injection chromatography and selected ion monitoring mode (MIC-MS-SIM). The method was validated using ten model compounds. Acceptable specificity, linearity (R

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Declaration of Competing Interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper.