摘要
先用稀盐酸将铝土矿浮选固体表面所吸附溶液的pH调至2．0。再加适量的蒸馏水，使固体表面所吸附的羟肟酸富集在水溶液中。然后将此溶液的pH调至2．6。最后在505nm处测样品溶液的吸光度。从而得知铝土矿浮选固体所吸附羟肟酸的量．同时。对萃取剂的种类和用量及干扰离子等进行了研究．测量羟肟酸的相对标准偏差和回收率分别为0．56％～1．29％和93％～110％．
The pH of absorbed solution in the surface of floatation solids of bauxites was adjusted to 2. 0 by muriate acid, then hydroximic acid absorbed in the surface of solids was enriched in aqueous solution by added moderate distilled water, finally, the absorption value of samples solution was determined at 505 nm after the pH of the solution was adjusted to 2.6, and the content of hydroximic acid in the surface of floatation solids of bauxites could be found. The kinds and dosage of extractants and interference ions were also studied in this paper. The relative standard deviation and recovery of determined results of hydroximic acid were 0. 56%-1. 29% and 93%-110%, respectively.
出处
《广东有色金属学报》
2006年第2期133-136,共4页
Journal of Guangdong Non-Ferrous Metals
关键词
可见分光光度法
羟肟酸
浮选固体
萃取
visible spectrophotometry
benzohydroxamic acid
flotation solid
extraction
