The CS 1521 Prep HPLC System is equipped with a high-sensitivity UV-Visible Detector designed to deliver precise, accurate, and reliable analytical results across a wide range of preparative applications. Featuring automatic optical path switching and an extensive wavelength range of 190–900 nm, it enables comprehensive detection of diverse compounds with superior clarity. With a high-speed data acquisition rate of up to 100 Hz, the detector captures even the narrowest peaks with exceptional resolution and accuracy. Its wide linear dynamic range of 2.5 AU ensures excellent quantification for both low and high-concentration samples. The detector also supports a standard wavelength time program and wavelength-switching detection, providing flexibility for complex analytical methods. Designed for ease of maintenance, it allows quick light source replacement and supports multiple flow cell configurations to meet various application needs. Combining performance, reliability, and user convenience, the UV-Vis detector in the CS 1521 Prep guarantees consistent, high-quality results for precise preparative chromatography.