VUV-40F Dual Beam Fixed Wavelength Absorbance Monitor
The VUV-40F is a dual beam, fixed wavelength, optical absorbance detector for liquid chromatography. The OEM module can be configured in a variety of ways from standalone operation to incorporation into a dedicated analyzer. Choice of light source includes: Hg and D2 lamps for UV absorbance and high intensity LEDs for the visible range.
A series of sample cell options are also available from preparative to micro volume. Standard data output formats available are USB, RS232 and IEE488. Typical applications are in HPLC systems, dedicated analyzers and private label instrumentation.
* Constant temperature with standard 10 mm cell (air).
| Light source | Low pressure mercury lamp 254 nm Deuterium 190 nm-400 nm LED (discrete wavelengths) Xenon flash 200 nm-800 nm |
| Optical design | Double beam (sample/reference) |
| Wavelength selection | Customer replaceable interference filter (filter not required on LED light source however it is application dependent) |
| Wavelength accuracy | Defined by elemental line emission characteristics of the lamp |
| Wavelength precision | Better than +/- 0.2 nm |
| Band pass | Low pressure mercury lamp < 0.1 nm Deuterium/Xenon lamp typically 10.0 nm at half height (dependent on interference filter) LED 5 nm-40 nm dependent on wavelength |
| Noise* | <+/- 1 x 10-5 AU over 30 sec period peak to peak with 1.0 sec rise time |
| Drift* | <+/- 1 x 10-4 AU over 30 min period peak to peak 1.0 sec rise time |
| Input/Output | Standard configuration USB I/O Optional 24 bit analog output or IEEE 488 Data rate can be fixed or variable from 80 samples/sec to 30,000 samples/sec. |
| Cells | 5mm, 10mm path length STD cell; 5mm, 10mm path length High flow cell; micro cell, prep cell |
