Mwaura K, Narayana D G, Kinyua A M
Department of Physics, Faculty of Engineering, University of Nairobi, Kenya.
J Trace Elem Electrolytes Health Dis. 1994 Jun;8(2):115-7.
A simple method for iodine determination in urine and water samples is presented. After digestion of the sample with chromic acid, the iodate produced was converted to iodide by the addition of a strong solution of sodium sulphite. The iodide was then precipitated as palladium iodide using a solution of palladium chloride. The precipitate was filtered through membrane filter paper, air-dried and analyzed using the Energy Dispersive X-Ray Fluorescence (EDXRF) method.
本文提出了一种测定尿液和水样中碘的简单方法。用铬酸消化样品后，通过加入亚硫酸钠浓溶液将产生的碘酸盐转化为碘化物。然后用氯化钯溶液将碘化物沉淀为碘化钯。沉淀物通过膜滤纸过滤，空气干燥后用能量色散X射线荧光（EDXRF）法进行分析。
