Nephelometric determination of gold with di-2-thienyl-ketoxime

Add time:08/13/2019    Source:sciencedirect.com

A nephelometric method for the determination of microgram quantities of gold with di-2-thienylketoxime is described. The yellow gold complex, which has the empirical formula Au(C9H6NOS2)2OH, forms a stable suspension when gelatin is added as protective colloid. Many foreign ions do not interfere in 5-fold amounts. If necessary, a preliminary isopropyl ether extraction of gold can be used.

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