Analytical Instrumentation
High-precision analytical devices that measure the mass-to-charge ratio of gas-phase ions are used for molecular-level identification of substances. The use of mass spectrometry enables laboratories to identify and quantify the proteins present in animal hair blends. This instrument provides a molecular fingerprint that is far more detailed than traditional optical imaging.
Ionization Efficiency
Samples must be converted into charged molecules and separated in a vacuum using electric or magnetic fields. In mass spectrometry, the precision of the mass measurements allows the detection of single amino acid substitutions in hair proteins. This resolution is necessary to distinguish cashmere from fine sheep wool.
Fibre Profiling
Proteomic workflows use this technique to analyze tryptic peptides extracted from yarns and finished textiles. The resulting spectrum shows distinct peaks representing the unique biomarker peptides of each animal species. Brands utilize these mass spectra to verify the purity of incoming wool or camel hair shipments from overseas suppliers.
This chemical verification ensures that the physical goods match the premium composition declared on the commercial invoice.
Definitive Verification
The measurement yields a highly accurate list of peptide masses and sequences for database matching. Applying mass spectrometry provides a robust and legally defensible method for detecting adulteration in luxury textile products.
