Adapting high-performance liquid chromatography (HPLC) methods to the capillary scale opens new possibilities for pharmaceutical analysis and sustainability. This paper, featuring a collaboration with the University of Pavia and Axcend, examines real-world method conversions that preserve performance while minimizing waste. Case studies include detection of a polar impurity in pediatric ibuprofen mini-tablets using a micro-HPLC-UV method, and a USP <621> guided adaptation for hydrochlorothiazide demonstrating over 99% solvent reduction. Practical guidelines, expected trade-offs, and data from both academic and regulated environments will offer a roadmap to adapting validated pharmaceutical monographs to the capillary scale without the need for revalidation.
Liquid chromatography–ion mobility spectrometry–high-resolution mass spectrometry (LC–IMS–HRMS) shows elephant seal pups carry more PFAS than their mothers do.
This week's Chromatography Online highlights include olive waste antioxidant recovery, food and tea analysis, EV isolation, mRNA vaccine purification, perfusion chromatography for oligonucleotides, mass spectrometry in teaching and career advice from “Women in Chromatography.”
Kinjal Bhatt and Ina Varfaj call AI a chromatography equalizer only if training and access keep pace, framing the risk as implementation, not technology.
Gas chromatography–mass spectrometry (GC–MS) and liquid chromatography–mass spectrometry (LC–MS) reveal lasting brain cholesterol loss after myelin damage.
Kinjal Bhatt would expose early-career scientists to the field sooner, while Ina Varfaj says a broken chromatography column taught her failure is normal.