All products ship from our 30,000 sq. ft. Haverhill, MA warehouse
Wyatt Optilab REX RI Detector
Model TREX-02
Universal detection for chromatography and FFF separations.
dRI measurement range, -0.0047 to +0.0047RIU
High resolution, touch-screen front panel display
The Optilab T-rEX (refractometer with extended range) is a unique dRI detector for standard HPLC/GPC with 256 times the detection power and 50 times the dynamic range of other RI detectors for chromatography in existence today, making it a valuable addition to any MALS setup. The Wyatt Optilab REX detector can measure the absolute refractive index of a solution as well as the dn/dc of a solvent at the same wavelength of light as the light scattering instrument. The light source in the T-rEX can be replaced for other wavelengths (e.g., 690, 633, 488, etc.) in just minutes.
Most of our equipment
is used and reconditioned. Our technicians test all equipment to confirm that it operates properly. While we can’t test for a specific analytical application, we will do our best to simulate the conditions under which the equipment will be run. If you have particular testing requirements or requests please let us know and we’ll work with you to make sure these requirements are addressed during testing.
Differential Refractive Index
Standard T-rEX
Range
-0.0047 – +0.0047 RIU
Peak-to-peak noise
± 7.5 x 10-10 RIU
High Concentration Option T-rEX
Range
-0.0026 – +0.034 RIU
Peak-to-peak noise
± 1.5 x 10-9 RIU
Absolute Refractive Index
Range
1.2 – 1.8 RIU
Sensitivity
0.002 RIU
Fluidics
Band Broadening
< 20 µL
Flow cell
7.4 µL
Inlet tubing (0.010" ID)
44 µL
Outlet tubing (0.030" ID)
370 µL
Back pressure created at inlet port
<50 psi (3.5 bar) @ 0.5 mL/min of pure water, 20°C
Maximum permissible back pressure at outlet port
30 psi (2 bar)
Wetted Materials
316 stainless steel, PTFE, fused silica
Dynamic Range
22+ bits only via digital communication
Data Acquisition Period
0.2 - 10 samples/second
Light Source
660 nm standard; other wavelengths available
Sample Temperature
Control Range
4°C – 65°C, temperature regulated
Temperature Regulation
± 0.005°C
FAQ
Does the equipment come with a warranty?
Yes, all equipment from American Instrument Exchange comes with a warranty. Used/reconditioned/refurbished equipment is tested to make sure it operates to the manufacturer's specifications and comes with a 90-day warranty (unless otherwise noted). New equipment comes with a warranty from the manufacturer.
How do you test and recondition the equipment?
Testing requirements vary across all the equipment categories we sell. Temperature controlled units are tested with NIST traceable probes and data loggers. Gaskets, external housing, glass, handles, controls and control screens are all thoroughly inspected for integrity and functionality. We test all equipment using the manufacturer's parameters and specifications to confirm that the unit operates properly.
How do products ship from American Instrument Exchange?
We can ship products both nationally and internationally using a well-established network of transporters. Smaller items will ship via UPS. Larger equipment will be palletized and shipped either LTL or air-ride, depending on the specific equipment and/or delivery requirements.
Return and order cancellation policy
American Instrument Exchange will accept the return of any product that is not working as represented and could not be replaced or repaired to the customer's satisfaction during the warranty period. Customers who cancel orders after refurbishing has begun will be subject to a cancellation and restocking fee of between 20% and 40%.
Are discounts available for educational or non-profit institutions, or for bulk purchases?
Yes – call or email us today with a list of equipment you're looking for and we can potentially put together a quote that includes a discount.
How does your price matching policy work?
We strive to keep our pricing competitive and reasonable. If you find comparable items for sale at a lower price from other vendors please send us a link and or quote for the item and we'll do our best to match or beat the price.
Can I see the equipment in person before committing to a purchase?
Customers are welcome to make an appointment to view equipment in our warehouse. Given our workload we may not be able to test or clean the equipment prior to your arrival if you have not committed to an order.
1023 Western Avenue is a working warehouse, not a showroom, and customers should dress appropriately and wear closed toe shoes.
Can I ship products that I purchased elsewhere to American Instrument for repair?
Yes – please see our repair services page for more information.
