Mass Spectrometry Proteomic Profiling for Fine Animal Fiber Verification
LC-MS/MS proteomic profiling quantifies species-specific keratin peptide markers, bypassing optical scale damage to verify fine animal fiber purity.
ISO/TS 20419
Technical Standard
International guidelines for the proteomic identification of animal hair fibers establish a common methodology for laboratories worldwide. The ISO/TS 20419 document describes the use of mass spectrometry to identify specific proteins in textiles like cashmere and wool. This standard ensures that results are consistent across different countries and testing facilities.
It was developed to address the limitations of traditional microscopic analysis.
Methodological Scope
Application of this protocol covers a wide range of animal fibers used in the luxury apparel industry. Under ISO/TS 20419, the lab must follow a specific sequence of sample preparation and data analysis. This includes the extraction of proteins and their breakdown into peptides.
The standard defines the minimum requirements for a valid result.
Sample Preparation
Chemical treatment of the fiber ensures that the keratin proteins are available for analysis. Following the ISO/TS 20419 steps involves cleaning the sample to remove oils and dyes that could interfere with the mass spectrometer. The fibers are then subjected to enzymatic digestion.
This creates a mixture of peptides that can be measured with high precision. It is the most sensitive method currently available for luxury fiber identification.
Global Compliance
Importers and brands use this standard to verify the authenticity of their high value products. Compliance with ISO/TS 20419 provides a defensible audit trail for marketing claims about fiber content. It reduces the risk of fraud in the cashmere and camel hair trade.
The document is updated periodically to reflect new scientific findings.