期刊
FOOD CHEMISTRY
卷 274, 期 -, 页码 215-219出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.foodchem.2018.08.125
关键词
Magnetic textile solid phase extraction; Acid dyes; Non-woven textile; Chitosan; Image analysis
资金
- Ministry of Education, Youth and Sports of the Czech Republic [LD14075, LO1305]
- ERDF/ESF project New Composite Materials for Environmental Applications [CZ.02.1.01/0.0/0.0/17_048/0007399]
- COST Action (European network for the promotion of portable, affordable and simple analytical platforms) [CA16215]
- COST Action (European Network to connect research and innovation efforts on advanced Smart Textiles) [CA17107]
Magnetic textile solid phase extraction, based on the use of magnetically modified non-woven textile impregnated with chitosan, was successfully employed for the preconcentration of acid food dyes from water solutions. The photos of textile squares with the adsorbed dye were taken with a mobile phone. The image analysis of the photos was performed using appropriate freeware. The values of saturation, obtained through the HSB color space, were proportional to the dye concentration in the analyzed samples. Described inexpensive, simple and elution free assay enables analysis of dyes concentration in various solutions. This novel method has a potential to be a useful alternative to existing semiquantitative determination procedures, especially for dyes analysis.
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