Document Center is acquired by Nimonik

Scope

1.1 This test method covers the determination of the degree of deacetylation in chitosan and chitosan salts intended for use in biomedical and pharmaceutical applications as well as in Tissue Engineered Medical Products (TEMPs) by high-resolution proton NMR (¹H NMR). A guide for the characterization of chitosan salts has been published as Guide F 2103.

1.2 The test method is applicable for determining the degree of deacetylation (% DA) of chitosan chloride and chitosan glutamate salts and is valid for % DA values from 50 up to and including 99. It is simple, rapid, and suitable for routine use. Knowledge of the degree of deacetylation is important for an understanding of the functionality of chitosan salts in TEMP formulations and applications. This test method will assist end users in choosing the correct chitosan for their particular application. Chitosan salts may have utility in drug delivery applications, as a scaffold or matrix material, and in cell and tissue encapsulation applications.

1.3 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.

Keywords

dacetylation; chitosan salts; proton; nuclear magnetic resonance; NMR; spectroscopy; ICS Number Code 11.120.20 (Wound dressings. Compresses); 71.040.50 (Physicochemical methods of analysis)

To find similar documents by ASTM Volume:

13.01 (Medical and Surgical Materials and Devices)

To find similar documents by classification:

11.100.99 (Other standards related to laboratory medicine)

11.120.20 (Wound dressings and compresses)

71.040.50 (Physicochemical methods of analysis Including spectrophotometric and chromatographic analysis)

This document comes with our free Notification Service, good for the life of the document.

This document is available in either Paper or PDF format.