The completely new design of the Thermo Scientific™ Vanquish™ Diode Array Detector (DAD) HL incorporates Thermo Scientific™ LightPipe™ Flow Cells, which provide the best signal-to-noise (S/N) performance through the combination of lowest baseline noise, a very long light path, and minimum peak dispersion. The ultra-wide dynamic range is ideal for simultaneous detection of highly concentrated main compounds and impurities down to trace levels. Interfering refractive index (RI) and thermal effects are reduced to a minimum for less baseline drift and therefore more reliable peak integration.