Agilent Manuals

This article introduces a use of SEC to analyze water soluble polymers in denture adhesives

Describes a method for analyzing star-branched polyethylene glycol. This method can be used with aqueous SEC.

This application note describes a water-based SEC method for the qualitative and quantitative analysis of food flavorings. The method uses Agilent PL aquagel-OH 30 8µm columns with RI detection in a pH 7 buffer. The method is suitable for the analysis of analytes with neutral, ionic, and hydrophobic moieties, either singly or in combination.

This application note introduces a SEC method for the analysis of food-grade gelatins. Using Agilent PL aquagel-OH MIXED-H 8 µm columns, a wide molecular weight range can be analyzed with excellent resolution. This method simplifies the analysis of molecular weight distributions of water soluble polymers with intermediate to high molecular weight.

This application note describes the best method for analyzing the molecular weight distribution of non-ionic surfactants using Agilent PL aquagel-OH 30 8 µm columns. The method provides high resolution and high reproducibility.

This document introduces the characteristics of pectin as a gelling, thickening, and stabilizing agent used in the food industry. Pectin is a natural product extracted from plant raw materials such as apple, citrus, and beet. Pectins with specific properties can be obtained by processing the extracts. Although the chemical composition of pectin is key to its application, rheological behavior is critical to performance, and determination of the molecular weight distribution can help predict rheological behavior. SEC and Agilent PL aquagel-OH MIXED-H 8 µm columns are ideal for resolving pectins with their wide molecular weight resolving range (up to 10 million g/mol relative to PEO/PEG) and high efficiency (>35,000 plates/meter).

This document introduces the SEC method for measuring the molecular weight of hydroxyethyl cellulose using Agilent PL aquagel-OH 40 and 60 8 µm columns.

This application note introduces the use of Agilent PL aquagel-OH 40 and 60 8 µm columns for the analysis of dextrans.

This article introduces the application of gum arabic in the food industry and the analysis method using Agilent PL aquagel-OH 40 and 60 8 µm columns. SEC and PL aquagel-OH columns successfully resolved two batches of gum arabic and demonstrated the difference in their molecular weight distributions.

This application note describes a fast analytical method for the determination of residual polyacrylamides in reclaimed water using aqueous size exclusion chromatography (SEC). The method uses an Agilent PL aquagel-OH column to partially exclude the polymer peak, which increases the response and provides separation between the polymer and any lower molecular weight species that may be present in the sample.

The Application Note introduces a method for analyzing chitosan molecular weight using GPC/SEC

This article introduces the application of Xanthan and its ability to act as a water thickener in oil recovery processes. The authors analyzed a sample of Xanthan using SEC and found that the PL aquagel-OH 60 15 µm columns successfully analyzed the low concentration sample, providing information on the molecular weight, polydispersity, and shape of the molecular weight distribution of the polymer.

This application note describes analysis of sodium polystyrene sulfonates using Agilent PL aquagel-OH columns.