Detection Type
< ± 0.25 x 10^-5 AU, at 230 nm (single wavelength detection)
< ± 0.80 x 10^-5 AU, at 230 nm and 254 nm (dual wavelength detection)
Volume: 8µl
Maximum pressure: 5 bar (0.5 MPa)
Maximum flow rate: 5 ml/min
Inlet port to sample cell 62 µl
Inlet port to outlet port 590 µl
Refractive Index Range
1.00 to 1.75 RIU, calibrated
Measurement Range
± 600 x 10^-6 RIU
Optics Temperature Control
5°C above ambient to 55°C
Sample Cell
Volume 8 µL, maximum pressure 5 bar (0.5 Mpa), maximum flow rate 5 mL/min
Valves
Automatic purge and automatic solvent recycle
Volumes
Inlet port to sample cell: 62 µL
Inlet port to outlet port: 590 µL
Liquid Contact Materials
316 stainless steel, PTFE, and quartz glass
pH Range
Short Term Noise
< ± 2.5 x 10^-9 RIU
Drift
± 600 x 10-6 RIU
Optical Zeroing
via set screw
316 stainless steel, teflon and quartz glass
< ± 2.5 x 10-9 RIU
Time Programmable Parameters
Standard: 13 µL volume, 10 mm cell path length and 120 bar (1740 psi) pressure maximum
FLD Detector
Specification
Multi-signal fluorescence detector with rapid on-line scanning capabilities and spectral data analysis
Performance Specifications
Single wavelength operation: ‚ RAMAN (H2O) > 500 (noise reference measured at signal) Ex=350 nm, Em=397 nm, dark value 450 nm, standard flow cell ‚ RAMAN (H2O) > 3000 (noise reference measured at dark value) Ex=350 nm, Em=397 nm, dark value 450 nm, standard flow cell Dual wavelength operation: RAMAN (H2O) > 300 Ex 350 nm, Em 397 nm and Ex 350 nm, Em 450 nm, standard flow cell.
Light source
Xenon Flash Lamp, normal mode 20 W, economy mode 5 W, lifetime 4000 h
Pulse frequency
296 Hz for single signal mode 74 Hz for economy mode
Excitation Monochromator
Range: settable 200 nm - 1200 nm and zero-order Bandwidth: 20 nm (fixed) Monochromator: concave holographic grating, F/1.6, blaze: 300 nm
Emission Monochromator
Range: settable 200 nm - 1200 nm and zero-order Bandwidth: 20 nm (fixed) Monochromator: concave holographic grating, F/1.6, blaze: 400 nm
Reference System
In-line excitation measurement
Timetable programing
up to 4 signal wavelengths, response time, PMT Gain, baseline behavior (append, free, zero), spectral parameters
Spectrum acquisition
Excitation or Emission spectra Scan speed: 28 ms per datapoint (e.g. 0.6 s/spectrum 200 ‚ 400 nm, 10 nm step) Step size: 1 ‚ 20 nm Spectra storage: All
Wavelength characteristic
Repeatability+/- 0.2 nm Accuracy+/- 3 nm setting
Flow cells
Standard: 8 µl volume and 20 bar (2 MPa) pressure maximum, quartz Optional: Fluorescence cuvette for offline spectroscopic measurements with 1 ml syringe, 8 µl volume, quartz
< ± 0.7 x 10^-5 AU, at 254 and 750 nm
With 10 mm Max-Light cartridge cell: < ± 3 x 10-6 AU at 230/4 nm, slit width 4 nm, TC 2 s , ASTM
With 60 mm Max-Light cartridge cell (included): < ± 0.6 x 10-6 AU at 230/4 nm, slit width 4 nm, TC 2 s , ASTM