Shimadzu Spd20a User Manual _hot_ Here

Baseline ZeroingAlways perform a "Zero" or "Autozero" once your mobile phase has reached a steady flow and the baseline is flat. This sets the current absorbance to 0.0000 AU.

| 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) | shimadzu spd20a user manual

: 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 Baseline ZeroingAlways perform a "Zero" or "Autozero" once

includes a as standard, which eliminates baseline drift caused by shifting air conditioning or lab temperatures. Quick Troubleshooting "Cheat Sheet" If a leak is detected, the system will

The Shimadzu SPD-20A User Manual is an essential, structured resource that empowers users to achieve low-noise, stable UV/Vis detection in routine HPLC analysis. Following its guidelines ensures maximum lamp life, minimal downtime, and reproducible quantification from method development to quality control.

Never use a wire to clean the cell capillary, as this can cause permanent damage. Troubleshooting Common Issues Baseline Drift