Inadequate sample and mobile phase preparation is a leading cause of poor HPLC performance, resulting in column fouling, pressure instability, and compromised data quality. Particulates, dissolved gases, and extractables can damage critical system components and introduce analytical errors such as ghost peaks and baseline drift. Effective filtration of both samples and mobile phases removes these contaminants before they enter the system. Selecting chemically compatible, low‑extractable membranes matched to the application ensures analytical integrity. Integrated filtration solutions simplify workflows while extending instrument and column lifetime. Read this eBook to explore practical solutions addressing both fundamental and complex challenges in HPLC sample preparation.