Refractive Index Detector: Shodex RI-201

The RI-210 is a highly sensitive RI detector incorporating a three-chamber flow cell.

NOTICE: WEEE program in EU

(Features)
· A nobel optical system (three-chamber flow cwll) provides at least twice the sensitivity of our previous detectors.
· The double temperaturefluctuations.
· The limit of detection for saccharides is approximately 2 ng.

Prenciple of New optical system measurement
in our previous optical system, the measurement light through the flow cell was refracted onlr once. the new three-chamber flow cell allows the light to be refracted wice, thereby inceasing sensitivity at least tow-times at the same optical path length. this doubles the defection degree and results in not only reduces the noise half, but reduces the drift caused by optical systems half.

(Application)


(Specifications)
Product code
Model
RI-201
Analysis
Flow cell type
3 chamber-type
Measuring method
Deflection type
Refractive Index range
1.00 to 1.75
Measuring range
0.125 to 256 micro-RIU
Drift
0.1micro-RIU/h (Pure water 1mL/min, PURGE OFF)
Linearity range
≥300micro-RIU
Noise
≤1nRIU (Pure water, response : 1.5sec)
Response
0.1 , 0.25 , 0.5 , 1 , 1.5 , 2 , 3 , 6 sec
Auto zero
Full auto zero
Auto zero range
All range
Off-set range
5micro-RIU
Off-set response
25nRIU
Integrator output
(Sensitivity)
DC 0 to 1V
(4mV/micro-RIU, 16mV/micro-RIU)
Cell volume
8micro-L
Flow rate (Usual)
0.2 to 3.0mL/min
(Max.)
10mL/min (solvent : pure water)
Max. back pressure
50kPa
Internal volume
IN to Cell: ca. 80micro-L
Cell to OUT: ca. 600micro-L
All(Cell to OUT: ca.690micro-L
Recorder output
0 to 10mV/FS
External input
-
External output
(1) READY (temperature control)
(2) LEAK
(3) ERROR (ROM, RAM, PARAMETER, HOME POSITION, OVER-HEAT,
OPTI.-BALANCE, INTENSITY)
Temperature control
OFF, 30 to 50deg-C (1deg-C step)
77deg-C Temp. fuse (Double Temperature control)
Communication port
USB
Operational support
functions
None
Wetted materials
Stainless steel 316, Teflon, Quartz glass
Power source,
Power consumption
AC 100 to 240V±10%, 50/60Hz, 150VA max.
Demensions, Weight
W260 x D400 x H150 (mm), ca.12kg
Accessories
Power cable, single code, connector tube, fuse, operation manual