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| Light Source(s) |
Mercury lamp for 254 nm and other wavelengths, D2 lamp for any UV wavelengths (190-400 nm) |
| Optical design |
Interference filter with fiber optic beam splitter and high sensitivity/low RI effect flowcell |
| Wavelength selection |
User changed filters/elemental lamps, Hg lamp: 254nm (standard), 280 nm (phosphor, option), 350 nm (phosphor, option), 370 nm (phosphor, option), Zn lamp: 214 nm, 308 nm, Cd lamp: 229 nm, 326 nm, W lamp: 370 nm to 1000nm, D2 lamp 190 nm to 1000 nm |
| Wavelength accuracy |
Defined by the elemental line emission characteristic of the lamp. In the case of the broad emission W lamp, +/- 3 nm is typical |
| Wavelength precision |
better than +/- 0.2 nm |
| Wavelength band-pass |
<10.0 nm at half height for the W lamp, typical elemental line emission bandwidth is less than 0.1 nm (Hg, Zn, Cd lamps), 10 nm band-pass in model VUV-14-D |
| Noise and Drift |
< +/- 1 X 10 -5 AU (over 30 sec period peak to peak, 1.0 sec rise time); < +/- 1 X 10-4 AU (over 30 min. period peak to peak, 1.0 sec rise time) with STD sample cell at constant temperature |
| Input/Output connections |
RS-232 computer I/O; auto-injection input (event or run); auto-zero input; one analog integrator or chart recorder output, (voltage range default 1.0 v/AU); selectable analog range outputs of 4.0, 2.0, 1.0, 0.5, 0.2, 0.1, 0.05, 0.01, 0.005, 0.002, 0.001, 0.0005 AU/V with voltage range of +/- 4 V at any scale |
| Displays |
Absorbance (5 digit LED); wavelength (3 digits LED); analog output range (momentarily from absorbance display by pressing range switch); reference light level; sample light level |
| Size |
6.6" (height) X 9.4" (width) X 15" (depth with sample cell cover); Approx. 5.5 kg (12 lb. shipping weight) |
| Sample cells |
On column capillary cell. Other optional cells: HPLC flow cell with 10 mm pathlength, total dead volume of 18.0 uL (illuminated volume); micro cell (1.0 µl); 5 mm path length HPLC cell (10 µl volume); high volume preparative cell; high pressure/high volume preparative; cuvette holder. Please note all cells are can be changed by the user. Other cells are available; not all are listed. |
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