Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1166792 | Analytica Chimica Acta | 2010 | 5 Pages |
Abstract
We have developed a novel method for the determination of iodate based on the carboxymethyl cellulose-capped CdS quantum dots (QDs). Factors affecting the iodate detection were investigated, and the optimum conditions were determined. Under the optimum conditions, the relative fluorescence intensity of CdS quantum dots was linearly proportional to IO3− over a concentration range from 1.0 × 10−8 to 1.0 × 10−5 mol L−1 with a correlation coefficient of 0.9987 and a detection limit of 6.0 nmol L−1. Iodide, being oxidized by bromine to form iodate, was detected indirectly. The method was successfully applied to the determination of iodate and total amount of iodine in table salt samples. The related mechanism was also discussed.
Keywords
Related Topics
Physical Sciences and Engineering
Chemistry
Analytical Chemistry
Authors
Chun-Ran Tang, Zhong-hua Su, Bao-Gang Lin, Hao-Wen Huang, Yun-Long Zeng, Shuang Li, He Huang, Ya-Jing Wang, Chun-Xiang Li, Guo-Li Shen, Ru-Qin Yu,