Used Shimadzu Prominence LC-20A HPLC System

The Shimadzu Prominence LC-20A HPLC System is a versatile and robust modular platform designed for high-precision liquid chromatography. Renowned for its exceptional stability and user-friendly operation, it serves as a workhorse instrument in pharmaceutical quality control (QC), environmental monitoring, food safety, and academic research. The system’s modular architecture allows for flexible configurations, from simple isocratic setups to advanced multi-detector arrays, ensuring reliable performance for both routine analysis and complex method development.

System Architecture & Core Specifications

The Prominence series is built around a network-ready modular design, typically comprising a high-pressure pump, autosampler, column oven, and detector, all managed by the LabSolutions software suite.

• Solvent Delivery System: The LC-20A offers multiple pump options to suit various application needs. The LC-20AD binary high-pressure pump operates at up to 40 MPa (approximately 5800 psi) and delivers a wide flow range from 0.0001 to 10.0000 mL/min, providing the precision required for micro-bore columns. The LC-20AT tandem plunger pump and LC-20AB binary pump variants support high-precision gradient elution with minimal compositional ripple. All pumps feature advanced plunger seal wash mechanisms to extend maintenance intervals and ensure long-term baseline stability.

• Autosampler (SIL-20A/AC): Designed for high throughput, the SIL-20A autosampler handles up to 175 standard vials (1 mL) or utilizes microplate compatibility for unattended batch processing. It offers an injection volume range from 0.1 µL to 100 µL (expandable to 2000 µL with options), with exceptional precision (RSD < 0.2%). A key feature is its ultra-low carryover, measured at less than 0.0025% in naphthalene tests, which is critical for accurate trace analysis and sensitive bioassays.

• Detection Suite: The system supports a comprehensive range of detectors. The SPD-20A/AV UV-Vis detectors cover wavelengths from 190–700 nm (extending to 900 nm with the AV model), offering low noise and high sensitivity for pg-level detection. For advanced spectral analysis, the SPD-M20A photodiode array (PDA) detector provides 512-element resolution across 190–800 nm, enabling peak purity assessment and spectral library matching. The platform also seamlessly integrates fluorescence (RF-20A), refractive index (RID-20A), and other detectors for comprehensive sample characterization.

• Column Oven (CTO-20A/AC): The column compartment ensures chromatographic reproducibility through precise temperature control. The CTO-20A operates from 4°C to 85°C, while the CTO-20AC model includes electronic cooling, extending its range down to -10°C (from ambient) to accommodate thermally labile compounds or methods requiring sub-ambient conditions. The forced-air circulation system guarantees a temperature uniformity of ±0.1°C.

Key Performance & Operational Advantages

• Networked Control & Software: A defining feature is its integrated communication via the CBM-20A system controller, which allows multiple modules to be daisy-chained and managed through a single LAN connection. This facilitates remote monitoring and centralized data management. The system is operated via Shimadzu’s LabSolutions software, which provides full GLP/GMP compliance support, including comprehensive audit trails, user management, and electronic signature capabilities for regulated laboratories.

• Application Versatility: The LC-20A excels across a broad spectrum of analyses. In pharma QC, it is extensively used for assay and impurity profiling of active pharmaceutical ingredients (APIs). In food and environmental sectors, its high sensitivity makes it ideal for detecting pesticide residues and persistent organic pollutants at ppb levels. The system’s robustness also makes it a preferred choice for educational and training laboratories.

• Reliability and Upgradability: Known for its low failure rate and straightforward maintenance, the LC-20A is designed for continuous operation. Its modular nature allows for straightforward field upgrades, such as adding a second detector or integrating with a mass spectrometer (LC-MS), protecting long-term investment and adapting to evolving analytical demands.

In summary, the Shimadzu Prominence LC-20A HPLC System combines engineering reliability with analytical flexibility. It stands as a benchmark in the mid-range HPLC market, delivering the precision, stability, and ease of use necessary for demanding laboratory environments where data integrity and operational uptime are paramount.