U-HPLC has found its application across a broad spectrum of fields including pharmaceuticals, environmental analysis, food safety, and biochemistry. Its ability to rapidly and precisely quantify trace levels of substances makes it indispensable for quality control, drug development, and regulatory compliance. Furthermore, U-HPLC’s versatility in handling a wide range of sample types, from small organic molecules to large biomolecules, underscores its critical role in advancing scientific research and ensuring consumer safety.