The LC-4000 Series includes three PDA detectors.
The MD - 4 017 is a useful replacement for a single wavelength detector, the MD-4015 is the workhor se for UV- visible detection in the range 200 to 600nm and the MD-4010 is designed for high sensitivity and high spectral and time resolution.
The MD-4010 PDA detector offers the highest detection sensitivity, equivalent to a single wavelength detec tor. Making use of a 1024 element photometric diode array, the measurement wavelength range is from 190nm to 90 0nm with a MD-4010 PDA resolution of 1nm and fast spectrum acquisition rate of up to 100 spectra/ sec. When used with the new temperature controlled SP t ype semi-micro flow cell the MD-4010 is well suited to the narrower peaks typically found with UHPLC or RHPLC separations. The MD-4010 is fitted with an internal mercury lamp for automatic wavelength calibration.
The MD-4015 PDA detector is the routine detector for conventional HPLC, RHPLC and UHPLC. The sensitivity is almost equivalent to that of the MD-4010 but only covers the wavelength range from 200nm to 600nm using a 512 element PDA for 1nm resolution and with high speed 100Hz spectrum acquisition.