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Estimated Delivery
Apr 20 - Apr 27
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Free standard shipping on orders over $99
You may return most new, unopened items within 30 days of delivery for a full refund. We'll also pay the return shipping costs if the return is a result of our error (you received an incorrect or defective item, etc.).
You should expect to receive your refund within four weeks of giving your package to the return shipper, however, in many cases you will receive a refund more quickly. This time period includes the transit time for us to receive your return from the shipper (5 to 10 business days), the time it takes us to process your return once we receive it (3 to 5 business days), and the time it takes your bank to process our refund request (5 to 10 business days).
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The NEW Differential Refractive Index Detector for HPLC, GPC/SEC
The new Refractive Index Detector RI 2012 series provides a consistent enhancement of the already successfully established Refractive Index Detector models RI 2000 and RI 2000-F. The Refractive Index Detector RI 2012 series offers users 3 times higher sensitivity, (compared to RI 2000) stability and reproducibility required for optimal refractive index detection in HPLC and GPC/SEC. The new Refractive Index Detector RI 2012 series provide autopurge and autozero capabilities, as well as RS-232 and USB communication to acquire data directly without using any external signal interface.
Note: For all International Orders, the buyer will be solely responsible for the customs clearance, duty, and taxes imposed on the package.
Refractive Index Detector RI 2012 detectors are available for:
RI 2012 M / micro | RI 2012 A / analytical | RI 2012 P/ semiprep | |
Detection Method | Deflection Deflection Deflection | ||
Refractive Index Range | 1.00 to 1.75 1.00 to 1.75 1.00 to 1.75 | ||
Flow Rate | 0,2 - 3,0 ml/min | 0,2 - 3,0 ml/min | 5,0 - 50 ml/min |
Flow Cell Volume | 4ul, 45 degree angle | 9ul, 45 degree angle | 13ul, 5 degree angle |
max. Flow Cell Pressure | 6 kg/cm2 6 kg/cm2 6 kg/cm2 | ||
Dead Volume | Into cell 6ul | Into cell 24ul | Into cell 88 or 314ul |
Linearity Range | 0-500ul RIU | 0-1000 uRIU | 0-20000 uRIU |
Noise Level | 10 x 10-9 RIU | 5 x 10-9 RIU | 10 x 10-8 RIU |
Autozero Range | Full Range | Full Range | Full Range |
Drift with 1ml H2O/min | < 1 mV/hour | < 1 mV/hour | < 1 mV/hour |
Purge Valve | yes | yes | Yes/No (depends on flow) |
Integrator Output | +/- 1 Volt | ||
Recorder Output | +/- 10 mV / 100 mV / 1Volt | ||
Recorder Offset | 0 mV/ 10 mV/ 100 mV | ||
Recorder Range | 8 steps (1:8) - (16:1) | ||
Marker | Yes / No | ||
Digital Interface | Control of: Purge, Autozero, Start, Stop, Heater, Data output rate, Polarity Current output of: Temperature optical bench, Optical balance, sum voltage, difference voltage, Alarm (Signal too high/low, A/D out of range, no temp. sensor) | ||
Digital Output | TTL: Intensity Alarm | ||
Digital Input | TTL: Purge, Autozero, Start/Marker | ||
Temperature Setting | Ambient, 35 degree C to 55 degree C in 1 degree C steps, Thermal Fuse 70 degree C | ||
Time Constant | RAW (0,0 sec), Fast (0,4 sec), Medium (0,8 sec), Slow (1,2 sec) | ||
Power Source | AC 100-120/220-240V, 50/60 Hz, 50VA | ||
Dimensions in cm | 300mm x 440mm x 175mm (W x D x H) | ||
Weight | 9,6 kg |
Cat.-No.: | Description |
RI 2012 A | Differential Refractive Index Detector, Analytical |
RI 2012 M | Differential Refractive Index Detector, Micro |
RI 2012 P | Differential Refractive Index Detector, Preparative |
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