GPC Refractive Index Detectors are one of the most commonly used detectors in gel permeation chromatography/size-exclusion chromatography. GPC RI detectors measure the refractive index of eluted compounds as they pass through the chromatographic column by comparing the sample to the pure solvent. The measured refractive index is directly proportional to its concentration, allowing the detector to provide quantitative data about the sample. When comparing GPC refractive index detectors ensure that the measurement range and sensitivity are sufficient for your assay as these can directly affect analysis and vary between models. For laboratories performing protein or polymer analysis, ensure that the temperature range is appropriate for your samples. When using a GPC refractive index detector always be sure to use high-quality solvents to achieve the best sensitivity. Thanks to their wide availability and good balance between sensitivity and ease of use, GPC RI detectors are an excellent option for most size-exclusion chromatography applications.
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Malvern Panalytical
- Light scattering (RALS or LALS), 4-capillary Wheatstone bridge and Differential refractive index detection
- 50 mW, 640 nm laser
- 7.5, 12 or 18 µL
Malvern Panalytical
- Light scattering (RALS or LALS), 4-capillary Wheatstone bridge and Differential refractive index detection
- 50 mW, 640 nm laser
- 7.5, 12 or 18 µL
Waters | Wyatt Technology
- UHPLC Compatible
- 660 nm standard (other wavelengths available)
- 7.4 µL
Waters | Wyatt Technology
- Inquire
- 658 nm ± 20 nm LED (488 nm, 785 nm and 940 nm wavelengths are available in the high-concentration version)
- 7.4 µL
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Malvern Panalytical
The OMNISEC REVEAL GPC/SEC System is an excellent device for viscosity detection and molecular characterization of polymers & proteins. The integrated triple detection system is exemplary in MW ... Read Review - Advanced & Powerful Multidetector GPC System
Malvern Panalytical
The OMNISEC Multidetector GPC/SEC system helps us a lot for our research work related to polymers. We are using this instrument for the characterization of natural polymers. This is the most advanced ... Read Review