26 1200 Series DAD and MWD User Manual
2 Site Requirements and Specifications
Performance Specifications
Tab le 2 Performance Specifications Agilent 1200 Series DAD and MWD
Type Specification Comments
Detection type 1024-element photodiode array
Light source Deuterium and tungsten lamps
Wavelength range 190 – 950 nm
Short term noise (ASTM)
Single and Multi-Wavelengt
±1×10
-5
AU at 254 and 750 nm See on page 27
Drift 2 × 10
-3
AU/hr at 254 nm See on page 27
Linear absorbance range > 2 AU (upper limit) See on page 27
Wavelength accuracy ± 1 nm Self-calibration with deuterium lines,
verification with holmium oxide filter
Wavelength bunching 1 – 400 nm Programmable in steps of 1 nm
Slit width 1, 2, 4 , 8, 16 nm Programmable slit
Diode width < 1 nm
Flow cells Standard: 13 µl volume, 10 mm cell path length
and 120 bar (1760 psi) pressure maximum
Semi-Micro: 5 µl volume, 6 mm cell path length
and 120 bar (1760 psi) pressure maximum
Micro: 2 µl volume, 3 mm cell path length and
120 bar (1760 psi) pressure maximum
High pressure: 1.7 µl volume, 6 mm cell path
length and 400 bar (5880 psi) pressure maximum
80 nano: 0.08 µl volume, 10 mm cell path length
and 50 bar (725 psi) pressure maximum
500 nano: 0.5 µl volume, 10 mm cell path length
and 50 bar (725 psi) pressure maximum
See
“Optimization Overview” on
page 69
Control and data evaluation Agilent ChemStation for LC
Analog outputs Recorder/integrator: 100 mV or 1 V, output range
0.001 – 2 AU, two outputs
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