| 罗丹明B光谱探针测定祛斑霜中微量汞 |
| |
| 引用本文： | 杜娟,卓文静. 罗丹明B光谱探针测定祛斑霜中微量汞[J]. 日用化学工业, 2009, 39(3) |
| |
| 作者姓名： | 杜娟 卓文静 |
| |
| 作者单位： | 襄樊学院,化学与生物科学系,湖北,襄樊,441053;襄樊学院,化学与生物科学系,湖北,襄樊,441053 |
| |
| 基金项目： | 湖北省教育厅科学技术研究项目 |
| |
| 摘 要： | 罗丹明B为光谱探针,研究了在三羟甲基氨基甲烷-HCl缓冲溶液(pH=6.5)中,十二烷基苯磺酸钠(SDBS)存在下,分光光度法测定祛斑霜中微量汞离子,得出了测定的优化条件.实验表明,室温下罗丹明B-SDBS-Hg2+形成水溶性三元复合物,最大吸收波长为554 nm,表观摩尔吸光系数ε=2.43×105L·mol-1·cm-1.Hg2+质量浓度在0～3.00μg/mL范围内服从朗伯-比尔定律.检出限为0.021μg/mL,加标回收率为98.5%～100.3%,RSD为1.06%～1.11%.
|
| 关 键 词： | 十二烷基苯磺酸钠 罗丹明B 光谱探针 祛斑霜 |
Determination of micro constituent mercury in freckle cream using Rhodamine B as spectroscopic probe |
| |
| DU Juan,ZHUO Wen-jing. Determination of micro constituent mercury in freckle cream using Rhodamine B as spectroscopic probe[J]. China Surfactant Detergent & Cosmetics, 2009, 39(3) |
| |
| Authors: | DU Juan ZHUO Wen-jing |
| |
| Affiliation: | Department of Chemistry and Biological Science;Xiangfan College;Xiangfan;Hubei 441053;China |
| |
| Abstract: | Method for spectrophotometric determination of micro constituent mercury in freckle cream was developed with Rhodamine B as spectroscopic probe in a buffer solution of trihydroxymethyl amino methane hydrochloride salt(pH=6.5)and in the presence of an anionic surfactant sodium dodecylbenzene sulfonate(SDBS).Conditions for carrying out the determination were identified.Results showed that,under room temperature a ternary complex substance Rhodamine B-SDBS-Hg2+ is formed with maximum absorbance at wavelength o... |
| |
| Keywords: | sodium dodecylbenzene sulfonate Rhodamine B spectroscopic probe freckle cream |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
|
