【摘要】 讨论了不需用显色剂吸光光度法测定海带中微量碘。以三氯甲烷直接萃取水中的碘 ,在一定条件下 ,三氯甲烷中碘的颜色的深浅与碘的浓度呈线性关系。该法选择性好 ,回收率为 99%～ 1 0 5% ,变异系数 1 .69%。更多还原

【Abstract】 A spectrophotometry method for determination of iodide in kelp without developed dye was discussed. The iodide could be extracted by CHCl 3. The method showed good selectivety, good recorery in the range of 99%～105%, and relative standand diviation 1.69%.更多还原