| 水中痕量土霉素的亲水溶剂浮选-分光光度测定 |
| |
| 引用本文： | 侯延民,谢吉民,闫永胜,王良.水中痕量土霉素的亲水溶剂浮选-分光光度测定[J].分析科学学报,2009,25(5). |
| |
| 作者姓名： | 侯延民 谢吉民 闫永胜 王良 |
| |
| 作者单位： | 1. 江苏大学化学化工学院,江苏镇江,212013;平顶山学院化学化工学院,河南平顶山,467000
2. 江苏大学化学化工学院,江苏镇江,212013 |
| |
| 基金项目： | 国家自然科学基金，江苏省高校自然科学基础研究 |
| |
| 摘 要： | 本文利用自制的浮选装置,选择四氢呋喃和无水乙醇(4+1)混合溶液作溶剂,氯化钠作分相剂,将Fe(Ⅲ)与土霉素(OTC)形成的疏水性缔合物浮选至有机相,然后采用分光光度法测定,方法线性线性范围为6.6×10~(-7)～3.4×10~(-5) mol/L;检出限为3.63×10~(-7) mol/L;平均回收率为99.95%;表观摩尔吸光系数ε=2.028×10~5 L·5moL~(-1)·5cm~(-1).该方法设备简单、测定快速、灵敏度高、分离物质易于提取和不产生二次污染,可用于环境水样中痕量土霉素的快速测定.
|
| 关 键 词： | 亲水溶剂浮选 分光光度法 土霉素 铁(Ⅲ) Iron (Ⅲ) |
Determination of Trace OTC in Environmental Water by Hydrophilic Organic Solvent Gas Floatation-Spectrophotometry |
| |
| HOU Yan-min,XIE Ji-min,YAN Yong-sheng,WANG Liang.Determination of Trace OTC in Environmental Water by Hydrophilic Organic Solvent Gas Floatation-Spectrophotometry[J].Journal of Analytical Science,2009,25(5). |
| |
| Authors: | HOU Yan-min XIE Ji-min YAN Yong-sheng WANG Liang |
| |
| Institution: | HOU Yan-min1,2,XIE Ji-min1,YAN Yong-sheng1,WANG Liang1(1.School of Chemistry and Chemical Engineering,Jiangsu University,Zhenjiang 212013,2.School of Chemistry and Chemical Engineering,Pingdingshan University,Pingdingshan 467000) |
| |
| Abstract: | A novel and green method for separating and enriching trace OTC in environmental water by hydrophilic organic solvent gas flotation has been proposed. The hydrophobic complex composed of Fe(Ⅲ) and OTC was floated into organic phase under the optimal conditions with home-made floatation equipment. The linear range was from 6.6×10~(-7) to 3.4×10~(-5) mol/L, the detection limit was 3.86×10~(-8) mol/L, and the average recoveries was 99.95%. The method has many advantages such as simple, fast, sensitive, easy separation and no contamination, and can be applied to the trace OTC analysis in water. |
| |
| Keywords: | Hydrophilic organic solvent gas floatation Spectrophotometry OTC |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
|
