- Model SPD-20A/20AV Series - Prominence HPLC UV-Vis Detectors

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Part of the SPD-20 Series, which also includes the SPD-M20A Photo Diode Array Detector, 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.

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