Summary
A TLC method for the fast detection of copper, iron and managanese ions in cotton materials is described. The optimal solvent system is 8∶1∶2 (v/v), acetone: HCl:H2O and the locating reagent is rubeanic acid followed by exposure to ammonia vapour. It was found that in cotton materials, metal ions can be detected at a lower limit of 20 μg per gram of material.
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Kaštelan-Macan, M., Bokić, L., Cerjan-Stefanović, Š. et al. Separation and detection of traces of copper, iron and manganese in cotton materials by TLC. Chromatographia 22, 19–20 (1986). https://doi.org/10.1007/BF02257290
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DOI: https://doi.org/10.1007/BF02257290