Quantitative Estimation of Eulan CN, Mitin FF, and Lanoc GN in Wool

Two methods are described for estimating Eulan CN, Mitin FF, and Lanoc CN in wool. Eulan CN and Lanoc CN form chloroform-soluble ooloured complexes in the presence of copper sulphate and pyridine. The reaction is specific for these and other closely related chemical compounds, and may be used for their estimation. Mitin FF and also Eulan CN and Lanoe CN may be estimated by means of the chloroform-soluble complex formed in the presence of Methylene Blue. This reaction is non-specific.