The Shimadzu SPD-20A is a high-sensitivity UV-VIS detector designed for use with Prominence HPLC systems. The following report details key information typically found in its user and service manuals. 1. Key Technical Specifications
is recognized for its industry-leading sensitivity and stability. Light Source: Deuterium (D2) lamp. Wavelength Range: 190 to 700 nm. Noise Level:
AU max, making it highly sensitive for trace component detection. Linearity: Up to 2.5 AU (ASTM standard). Bandwidth: 8 nm.
Temperature Control: Features a temperature-controlled flow cell (TC-Optics) to ensure baseline stability against ambient temperature changes. 2. Operational Procedures
Manuals provide standard operating procedures (SOPs) for daily use: Startup: Turn on the main power. For the , the display should show "D2" once the lamp is active.
Lamp Control: Lamps can be toggled manually via the front panel or through software such as LabSolutions or EZStart.
Wavelength Setting: Set the acquisition channel and desired wavelength (e.g., 280 nm) within the software's detector panel.
System Check: Users can perform a "System Check" to verify lamp energy and wavelength accuracy. A "Complete" check level evaluates both the light source and internal calibration. 3. Maintenance and Safety shimadzu spd20a user manual
Shimadzu SPD-20A Service Manual | PDF | Optical Filter | Light
The Shimadzu SPD-20A Go to product viewer dialog for this item.
is a high-performance UV-Vis detector designed for the Prominence HPLC series. It is widely recognized for its high sensitivity and low noise levels, making it a staple in analytical laboratories. Core Specifications & Features Wavelength Range: Covers
, allowing for the detection of a wide variety of compounds.
Dual-Wavelength Mode: Capable of monitoring two different wavelengths simultaneously, which is essential for identifying peaks and ensuring purity. Sensitivity: Features a noise level of and a drift of , ensuring reliable data even at low concentrations.
Temperature-Controlled Cell: Includes a standard thermostatic flow cell to minimize the impact of ambient temperature fluctuations on the baseline. Operational Guidelines
Based on standard Shimadzu Prominence manuals, the following steps are critical for safe and effective use: System Initialization: Ensure the waste line is properly secured. The Shimadzu SPD-20A is a high-sensitivity UV-VIS detector
Perform a "Lamp ON" command via the front panel or LabSolutions software. Allow at least 30 minutes for the Deuterium ( D2cap D sub 2 ) lamp to stabilize. Purging and Priming:
Flush the flow cell with a mobile phase that is transparent at your target wavelength.
Use the "Zero" or "Autozero" function once the baseline has stabilized to set the current absorbance to Wavelength Calibration:
The unit performs a self-diagnostic check upon startup, using the emission lines of the D2cap D sub 2 lamp to calibrate the monochromator automatically. Maintenance and Troubleshooting Lamp Replacement: The D2cap D sub 2
lamp typically has a lifespan of approximately 2,000 hours. If the "Energy" levels drop significantly or the baseline becomes excessively noisy, the lamp likely needs replacement.
Flow Cell Cleaning: If you notice high backpressure or ghost peaks, the flow cell may be contaminated. Flush with a compatible strong solvent (like Isopropanol) or a dilute nitric acid solution (refer to the specific manual for concentrations).
Leak Management: Always check the leak sensor at the bottom of the unit. If a leak is detected, the system will automatically stop the pump to prevent damage. Safety Precautions User manual reference: Section 2
UV Exposure: Never look directly into the lamp or the end of the fiber optic cable while the lamp is on, as UV radiation can cause permanent eye damage.
Solvent Compatibility: Ensure all buffers and solvents are filtered ( or finer) to prevent clogging the delicate flow cell. D2cap D sub 2
lamp or how to configure dual-wavelength settings in LabSolutions?
The Shimadzu SPD-20A/20AV is a high-sensitivity UV-Vis HPLC detector featuring a 190-700 nm range (extendable to 900 nm on 20AV) and dual-wavelength monitoring capabilities. The user manual outlines critical maintenance, including deuterium lamp replacement, flow cell cleaning, and troubleshooting for baseline noise or error codes. You can find the full documentation and support resources on the Shimadzu official website.
Understanding Your Shimadzu SPD-20A: A Comprehensive User Manual Guide
The Shimadzu SPD-20A is a versatile and widely used UV-Vis detector in various laboratory settings, particularly in High-Performance Liquid Chromatography (HPLC) systems. This detector is prized for its reliability, sensitivity, and the crucial role it plays in analyzing the absorbance of compounds in solution. In this blog post, we'll walk you through the essential components, operation, maintenance, and troubleshooting tips for the Shimadzu SPD-20A, ensuring you get the most out of your device.
Before diving into procedures, here are the core specifications you will consistently reference in the Shimadzu SPD-20A user manual:
| Parameter | Specification | |-------------------------|--------------------------------------------------| | Wavelength Range | 190 – 600 nm | | Light Source | Deuterium lamp (D2) for UV; Tungsten lamp (optional for Vis) | | Bandwidth | 8 nm | | Wavelength Accuracy | ±1 nm | | Noise Level | ±0.25 × 10⁻⁵ AU (at 254 nm, 2 sec time constant) | | Drift | ±1 × 10⁻⁴ AU/h | | Cell Volume | 12 µL (standard), 8 µL (semi-micro), 2.5 µL (micro) | | Time Constant | 0.1 to 3.0 sec (adjustable) |
Keep a printed copy of this table near your instrument.