The Dionex PDA-100 Photodiode Array Detector is an optical detector capable of measuring the absorbance spectrum from 190 nm to 800 nm. A deuterium lamp optimizes the UV range (190 nm to 380 nm) and a tungsten lamp optimizes the visible range (380 nm to 800 nm).
When using the PDA-100, up to five single wavelengths (2D chromatograms) can be collected without being required to collect 3D data. Collecting individual wavelengths instead of the spectra offers two advantages: it eliminates the need to perform extractions for runs that do not require spectral data and it conserves disk space.
This refurbished Dionex PDA-100 Photodiode Array Detector is in great condition. It has been tested at SpectraLab Scientific.
A 90 day warranty is included.
| Specification | |
| Optical System | Single-beam, reverse-optics design with concave holographic Grating |
| Light Sources | Deuterium lamp (30 W) for ultraviolet spectrum analysisTungsten lamp (15 W) for visible spectrum analysis |
| Photodiode Array | 1024 elements |
| Wavelength Range | 190 nm to 800 nm |
| Pixel Resolution | 0.7 nm |
| Wavelength Accuracy | ± 1 nm |
| Noise | ± 10 µAU with 2-second rise time, 254 nm, 4 nm bandwidth, and flowing deionized water± 15 µAU with 2-second rise time, 520 nm, 10 nm bandwidth, and flowing deionized water |
| Drift | < 500 µAU/hour (after warm-up) |
| Linearity | > 2 AU |
| Analog Outputs | Four built-in analog outputs |
| Voltage Out | 1 V output |
| Analog Output Range | 0.0005, 0.001, 0.01, 0.1, 0.5, 1.0, 2.0, or 3.0 AU full-scale |
| Control and Data Evaluation | Provided by PeakNet 6 or Chromeleon software; communication with the detector is via the DX-LAN interface |
| Cell Body | PEEK or stainless steel |
| Volume and Optical Path Length | PEEK cell: 13 µL volume; 10 mm (0.394 in) path lengthStainless steel cell: 13 µL volume; 10 mm (0.394 in) path length |
| Maximum Operating Pressure | PEEK cell: 2 MPa (300 psi)Stainless steel cell: 3 MPa (500 psi) |
| Chemical Compatibility | -Do not use bases stronger than 0.1 M; they will etch the silica windows of the flow cells.-Do not use normal phase or chlorinated solvents with the PEEK flow cell; they will damage the cell.
-Do not use high pH salts with the stainless-steel flow cell; they will cause corrosion, contamination, and metal leaching. |
