The RID shows small sensitivity difference depending on the target compounds. This feature affords rough abundance proportion of sample components directly so that the RID is commonly used in GPC analysis for calculating molecular weight distribution.

12 Agilent 1260 Infinity RID User Manual 1 Introduction to the Refractive Index Detector How the Detector Operates According to the formula below small angles of external deflection are proportional to the difference between the refractive indices of medium 1 and medium 2. Where: † γ = angle of external deflection † n 2 = Refractive index ...

Nov 10, 2022 · This Information Applies To: Agilent Refractive Index Detectors, G1362A and G7162A/B Issue: The ASTM Drift and Noise Test for Agilent RID modules available within Agilent Lab Advisor Software fails. This article will help you identify potential causes of the test failure and how to resolve them.

GPC for the analysis of hydrophobic polymers has traditionally been conducted using a differential refractive index detector (RID) because many synthetic polymer compounds don’t have the functional groups for UV absorbance and the solvent for GPC mobile phase such as tetrahydrofuran (THF) and N,N-Dimethylformamide (DMF) absorb wavelength.

Dec 5, 2017 · The refractive index (RI) detector is the most common detector in gel permeation chromatography/size-exclusion chromatography (GPC/SEC). The advantage of this universal detector is that it detects everything; the disadvantage is that it detects everything.

The Agilent 1260 Infinity III Refractive Index Detector (RID) is the ideal detector for fast and reliable LC results when routinely analyzing non-UV absorbing substances, such as carbohydrates, lipids, and polymers. The RID is also the detector of choice for gel permeation chromatography (GPC) or size exclusion chromatography (SEC ...

Nov 10, 2022 · This Information Applies To: Agilent Refractive Index Detectors, G1362A and G7162A/B Issue: The ASTM Drift and Noise Test for Agilent RID modules available within Agilent Lab Advisor Software fails. This article will help you identify potential causes of the test failure and how to resolve them.

LC with the Agilent 1290 Infinity II Micro Refractive Index Detector (RID) for GPC. The Micro RID enables the use of GPC columns with narrow inner diameters, such as 4.6 and 2.1 mm.

A refractive index detector (RID) that gives a response to a sample weight is commonly employed for GPC to calculate average molecular weight and polydispersity. On the other hand, A UV detector is used for determination of polymer additives such as antioxidants.

Dec 1, 2012 · RI detectors respond to a universal, bulk property of the analyte — its refractive index. Usually referred to as differential refractive index detectors, these detectors detect peaks based on the difference in refractive index between …