dRI Detector
The new dRI Detector by Polymer Char is a differential refractive index detector designed to integrate with its well-established GPC-IR Instrument for polyolefins, with the purpose of complementing Polymer Char’s Infrared Technology in high temperature GPC/SEC applications.
By coupling the dRI Detector as universal detector to Polymer Char’s GPC-IR system, users benefit from a synergistic effect that enables more accurate molar mass distribution (MMD) and molar mass averages. This is particularly valuable for polymers with limited infrared detectability, such as EPDM and others, thus broadening the analytical scope of the GPC-IR instrument.
Polymers that are invisible to the IR4 and IR6 Detectors can now be analyzed with the new dRI companion detector, while maintaining the outstanding performance of Infrared detection for polyolefins within the same GPC instrument.
Polymer Char’s dRI Detector is the only differential refractive index detector in the market designed as a stand-alone device, featuring independent temperature control and a heated transfer line. This design offers exceptional flexibility because it can be coupled to a GPC-IR during the initial manufacturing stage, or added later as an upgrade. This modularity supports staggered investment strategies and allows users to tailor their GPC-IR setup to evolving technical requirements.
Also available are our main Infrared detectors IR4 and IR6. Their capabilities vary from one another, so the choice of IR detector will depend on the types of samples to analyze: comparison of Infrared detectors (IR4, IR5, and IR6)
The technology used in Polymer Char’s infrared detection is patented.
To be seamlessly coupled with a GPC-IR from the start or added later as an upgrade.
Click on each feature to display
The new dRI detector by Polymer Char has been designed as a separated module with independent temperature control for facilitating modularity and flexibility depending on analytical needs.
The new dRI Detector by Polymer Char can reach 220ºC for convenient analysis of the most difficult polymers.
The detector delivers a good stability within this challenging technology and its inherent difficulties in setting integration limits in comparison to the Infrared Technology. As a result, precision provided is excellent among any other in the market.
HT-GPC analysis under standard conditions:
TCB, 150ºC, 3 columns set, 200 µL injection, 2 mg/mL concentration, pump flow rate 1 mL/min
No, it doesn’t; the dRI Detector control and data processing software are integrated in the GPC-IR Software packages together with all the rest of detectors in the instrument, becoming the most complete software platform in the world.
It is connected through a heated transfer line directly into the GPC-IR detectors and valves’ compartment.
Yes, it does; as like all the rest of the GPC-IR compartments, the dRI Detector and all the GPC-IR heated compartments are provided with independent temperature control systems, so therefore, servicing any of them is always possible without the need for cooling down rest of the compartments in the instrument.
Yes, it is; the new dRI detector can be acquired at the time of purchasing a new GPC-IR and also if you already have a Polymer Char’s GPC-IR. Thanks to its stand-alone design, the dRI can be coupled to new or existing GPC-IR units in order to complement the GPC-IR’s set of detectors if needed (for instruments older than 10 years, please ask Polymer Char first).
Thank you for your interest. If you would like to know more about our detectors or have any question,
please fill out the form below and we will be contacting you.
Other related instruments or techniques that might be of your interest:
