Pharmacia LKB Uvicord SII Code No. 18-1004-50 is a compact single beam UV-monitor with flow-through cell for monitoring the eluant from various column separations. Available wavelengths, selected by a combination of lamp and interference filter are 206, 226, 254, 280, 313, 365 and 405 nm.
Pharmacia LKB Uvicord SII is housed up in one combined optical and electronic unit. This detector simultaneously produces two absorbance outputs - one fixed at 2 AUFS and one selectable from 0.005 - 2 AUFS in 9 steps. Thus, with the selection of the appropriate absorbance range, Uvicord SII enables monitoring of both high and low concentration substances simultaneously with a dual-channel recorder.
Substances such as non-aromatic peptides, amino acids, lipids, nucleotides and certain carbohydrates have strong absorption at 206 nm whereas at higher wavelengths they show little or no absorption. Furthermore, most proteins also exhibit greater absorption at 206 nm than they do at 280 nm. By employing all fully integrated electronics and the very latest detection principles Uvicord SII performs to specification at ambient temperature and under cold room conditions.
Operating wavelengths 206, 226, 254, 280, 313, 365 and 405 nm.
Absorbance ranges 0.005, 0.01, 0.02, 0.05, 0.1, 0.2, 0.5, 1 and 2 AUFS.
Noise <1x10 -4 AU measured peak to peak in a dry cell.
Drift <5x10 -4 AU/h at constant temperature.
Operating temperature 0 to +30°C.
Recorder outputs 100 mV for selected absorbance range and 100 mV for fixed 2A range.
Integrator output 1 V = 2 AU.
Power consumption 20 W.
Mains Voltage 100/115/120/220/240V ±10%, 50/60 Hz.
Dimensions (LxWxH) 313 x 131 x 147 mm.
Weight 4.3 kg.