| 甲基橙-溴化十六烷基吡啶分光光度法测定阴离子表面活性剂 |
| |
| 引用本文： | 田志茗,计远. 甲基橙-溴化十六烷基吡啶分光光度法测定阴离子表面活性剂[J]. 光谱实验室, 2011, 28(1): 161-164 |
| |
| 作者姓名： | 田志茗 计远 |
| |
| 作者单位： | 齐齐哈尔大学化学与化工学院; |
| |
| 摘 要： | 在一定浓度的乙醇水溶液中,甲基橙(MO)可与溴代十六烷基吡啶(CPB)发生褪色反应,加入阴离子表面活性剂十二烷基硫酸钠(SDS),可使MO-CPB褪色体系增色,确定了显色体系的最大吸收波长为460nm.研究发现在最大吸收波长处,加入的SDS浓度与MO-CPB体系增色程度在一定范围内呈现良好的线性关系,当SDS的浓度在0...
|
| 关 键 词： | 甲基橙 溴代十六烷基吡啶 十二烷基硫酸钠 分光光度法 |
Determination of Anions Surfactants in Water Samples by Spectrophotometry with Methyl Orange-Cetylpyridinium Bromide |
| |
| TIAN Zhi-Ming,JI Yuan. Determination of Anions Surfactants in Water Samples by Spectrophotometry with Methyl Orange-Cetylpyridinium Bromide[J]. Chinese Journal of Spectroscopy Laboratory, 2011, 28(1): 161-164 |
| |
| Authors: | TIAN Zhi-Ming JI Yuan |
| |
| Affiliation: | TIAN Zhi-Ming JI Yuan(College of Chemistry and Chemical Engineering,Qiqihar University,Qiqihar,Heilongjiang 161006,P.R.China) |
| |
| Abstract: | In ethanol aqueous solution,when methyl orange was mixed with the solution of cetylpyridinium bromide（CPB）,a discolor reaction can be produced.After anion surfactant（SDS） was added,the colour of the solution become deeply and the maximum absorption wavelength was at 460nm.At this wavelength,the absorbance enhancement was proportional to concentration of anion surfactant（SDS）.The concentrations of SDS in the range of 0—8.0×10-5mol.L-1 obeyed Beer’s law at the maximum absorption wavelength.The apparent molar absorptivity was 1.89×104L.mol-1.cm-1.The method has better sensitivity and operability,and is applied to the determination of anions surfactants in water sample. |
| |
| Keywords: | Methyl Orange Cetylpyridinium Bromide Sodium Dodecyl Sulfate Spectrophotometry |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
