Regularly flush the cell with appropriate solvents to prevent contamination, especially after analyzing complex matrices.
Preventative maintenance extends the lifespan of the optical components and guarantees data integrity. Flow Cell Flushing Protocol
The user manual provides detailed diagrams of the detector components. Key areas for operators to familiarize themselves with include:
Lamp ReplacementThe D2 lamp is a consumable part with a typical lifespan of 2,000 hours. Replace the lamp if: The "Lamp Usage Time" exceeds the limit. The baseline noise becomes excessive. shimadzu spd20a user manual
Do not exceed the maximum pressure rating of the flow cell. 4. Routine Maintenance Guidelines
Verify that the analytical wavelength matches the analyte's maximum UV absorbance ( ). Ensure the lamp status is active. 6. Accessing the Official Documentation
The Shimadzu SPD-20A offers several key features that make it a popular choice among chromatographers: Regularly flush the cell with appropriate solvents to
Allows for the simultaneous detection of compounds at two different wavelengths, optimizing sensitivity for components with vastly different absorption spectra. Lamp Management The manual emphasizes proper lamp management, including:
The Shimadzu SPD-20A Go to product viewer dialog for this item.
Input your target detection wavelength (e.g., 254 nm for aromatic compounds). Key areas for operators to familiarize themselves with
The Shimadzu SPD-20A is a high-performance, dual-wavelength UV-Vis absorbance detector designed for high-performance liquid chromatography (HPLC). It is part of Shimadzu’s Prominence series and is known for its low noise level (< ±0.25×10⁻⁵ AU), high sensitivity, and excellent baseline stability. This paper outlines key hardware features, front panel operation, maintenance, and troubleshooting.
The (and the extended wavelength variant SPD-20AV ) is a cornerstone of the Shimadzu Prominence HPLC system , renowned for its superior sensitivity, stability, and versatility in UV-Visible detection. As a high-performance UV-VIS detector, it is essential for analytical chemists, QC technicians, and laboratory personnel to understand the proper operation and maintenance outlined in the user manual to achieve reliable results.
The SPD-20A is designed to deliver exceptional sensitivity ( ) and wide linearity (
Use a syringe to flush the cell with high-purity solvent. C. Optical System Calibration