Correcting Isobaric Peptide Mass Shifts in Proteomic Fiber Quantification
Correcting isobaric peptide mass shifts in proteomic fibre testing prevents false wool detections and protects cashmere customs declarations from penalties.
Quantification Limits of Hydrothermally Degradation Modifications in Recycled Cashmere Keratin Matrices
Hydrothermal recycling breaks cashmere keratin disulfide bonds, raising cysteic acid and lanthionine levels, lowering yarn tenacity and spinning yield.
Liquid Chromatography Tandem Mass Spectrometry Biomarker Quantification in Cashmere Yarns
LC-MS/MS biomarker quantification measures species-specific keratin peptide markers to verify cashmere yarn purity within a 1.0 percent mass limit of quantification.
Proteomic Identification Principles for Fine Animal Fiber Verification
LC-MS/MS tryptic peptide analysis provides species-specific verification of fine animal fibers, overriding optical scale degradation in processed blends.