Shimadzu Spd20a User Manual Jun 2026

The Shimadzu SPD-20A is a versatile UV-Vis detector that can be used in a variety of LC applications, including pharmaceutical analysis, environmental monitoring, and food safety testing. Its advanced design and high sensitivity make it an ideal choice for detecting analytes at low concentrations.

Allow the detector to warm up for at least 30-60 minutes to ensure baseline stability.

: 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.

: Optimized for UV analysis within the 190 to 700 nm wavelength range. shimadzu spd20a user manual

Allow a 60-minute warm-up. Insulate the column/tubing from drafty AC vents. Aging lamp, dirty flow cell windows, or air bubbles.

Immediately clean any leaks to avoid damaging the instrument's electronic components. Conclusion

The SPD-20A balances high sensitivity with long-term stability. Understanding its core specifications helps optimize performance. Deuterium ( D2cap D sub 2 Wavelength Range: 190 nm to 700 nm. Spectral Bandwidth: 8 nm. Wavelength Accuracy: ±1 nm. Wavelength Reproducibility: ±0.1 nm. Noise Level: AU (under specified conditions). Drift: AU/hour (under specified conditions). 2. Installation and Initial Setup The Shimadzu SPD-20A is a versatile UV-Vis detector

Understanding the hardware limits of your SPD-20A is crucial for developing robust analytical methods. The core specifications from the manufacturer manual include: Deuterium ( D2cap D sub 2 ) lamp for UV wavelengths. An optional Tungsten ( ) lamp can be installed for visible light extensions. Wavelength Range: 190 nm to 700 nm. Spectral Bandwidth: 8 nm. Wavelength Accuracy: ±1plus or minus 1 Noise Level: AU (under specified standard conditions). Drift: AU/hour (under specified standard conditions).

For safe and efficient operation, the manual advises following these steps:

Routine maintenance is critical for achieving the stated specifications, especially in high-throughput environments. Routine Maintenance : Never look directly into the lamp or

: Capable of operating within the 190 to 900 nm range, offering both deuterium and tungsten lamps for simultaneous, high-sensitivity wavelength programming across UV and visible light regions. 2. Key Components and Initial Setup

Flush thoroughly with water, then with Isopropyl Alcohol (IPA). 6. Troubleshooting and Error Codes Symptom / Error Potential Cause Corrective Action Temperature fluctuations or lamp aging Insulate column; replace D2cap D sub 2 High Baseline Noise Air bubbles in cell or dirty flow cell Flush cell with degassed methanol; check degasser Lamp Ignition Failure Lamp expired or power supply issue Check lamp hours; replace lamp Wavelength Error Internal calibration failure Restart unit; run hardware self-test Leaking Cell Loose fittings or cracked cell window Tighten fittings; replace cell gaskets/windows If you need help with specific steps, please tell me: Are you getting any error codes on the screen?