Differentiation of natural indigo and synthetic indigo in dye powders and their dyed products (yarns and fabrics) by static headspace gas chromatography-mass spectrometry
Qiong Wang,
Zeng-Lai Xu,
Zhihong Cheng
Abstract:Purpose
The precise and sensitive methods for authentication and differentiation of natural and synthetic indigo dyes are required for assurance of textile safety and public health. This study aims to develop a fast and simple method to distinguish natural indigo from synthetic one.
Design/methodology/approach
A static headspace gas chromatography-mass spectrometry (GC-MS) method was developed for identification of natural and synthetic indigo samples. Natural indigo samples prepared from three different pla… Show more
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