The SPD-20A/20AV UV-Vis detectors offer an exceptional level of sensitivity and stability. Taking sensitivity to the limit, the SPD-20A/20AV has a noise level of 0.5×10-5 AU max., making it the world’s most sensitive UV-Vis detector (ASTM Standards). One mode of the SPD-20AV allows both the deuterium and tungsten lamps to be lit simultaneously, enabling high-sensitivity wavelength-programming detection for ultraviolet light and the entire visible-light range.
Greater Baseline Stability
Supplied as standard, a temperature-controlled flow cell eliminates inconsistencies caused by changes in absorbance due to shifts in room temperature. This helps increase the baseline stability and the analysis reliability.
Superior Linearity – 2.5AU
Using newly developed signal processing technology, the stray-light correction function has been enhanced, and the linearity has been improved. This expanded linearity combines with various noise-reduction technologies to provide users with a wide dynamic range and allow for the analysis of your target compound and minor impurities in a single run.
Internal Validation Protocol
The incorporation of a low-pressure mercury lamp for wavelength calibration ensures simple calibration in the ultraviolet region.
Dual-Wavelength Measurement
Monitor two components in the UV or VIS range simultaneously
Simultaneous D2 and W lamp Illumination
Available with the SPD-20AV, users can eliminate warm-up time and baseline disturbances during wavelength programming between the UV and Visible range. With both lamps lit, high-sensitivity analysis throughout the full wavelength spectrum is ensured.
This SPD-20A/20AV UV-Vis detectors is in great shape. It has been tested at SpectraLab Scientific.
A 90 day warranty is included.
