Waters

Waters ACQUITY UPLC Photodiode Array (PDA) Detector

The Waters ACQUITY UPLC Photodiode Array (PDA) Detector is specifically designed for Waters ACQUITY UPLC System. With data rates up to 80 Hz and noise specifications as low as 10 μAU, the ACQUITY UPLC PDA Detector offers sensitivity that is unmatched by any other photodiode array detector on the market. Further, enhanced software control provides flexibility for simultaneous 2D and 3D operation in either Empower or MassLynx Software.
Item Specification
Wavelength range 190 to 500 nm
Optical resolution 1.2 nm
Digital resolution 1.2, 2.4, 3.6, 4.8, 6.0, 7.2, 8.4, 9.6, 10.8, 12.0
Wavelength accuracy ±1.0 nm
Wavelength Repeatability ±0.1 nm
Digital filter Variable with data rate
Order filter Fixed 340 nm to 500 nm
Noise (shunt in place of flow cell) 10 µAU, Peak to peak, 2 sec time constant, 30 sec
interval at 230 nm, 3.6 nm digital resolution, 2 Hz,
in a 240 micron medium shunt cell, 60 minute
warm-up time

Noise (10 mm
analytical flow cell) 14 µAU, Peak to peak, 2 sec time constant, 30 sec
interval at 230 nm, 3.6 nm digital resolution, 2 Hz,
0.5 mL/min, 10/90 Acetonitrile/water, 60 minute warm-up time

Drift (medium shunt cell and 10 mm analytical flow cell) 1000 µAU/hour, 2 sec time constant, 30 sec
interval at 230 nm, 3.6 nm digital resolution, 2 Hz,
60 minute warm-up time.
Environmental stability: ±2 °C/hour.
Analytical flow cell conditions 0.5 mL/min, 10/90
Acetonitrile/water.

Linearity < 5% at 2.0 AU, propylparaben series at 257 nm
Data rate 1, 2, 5, 10, 20, 40, and 80
Operating temperature 4 to 40 °C (39.2 to 104 °F)
Operating humidity